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19 Jan — 26 Jan1
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Good to know

Low season

August

High season

December

Cheapest flight

C$ 104

Average price round-trip

C$ 447

Good deal round-trip

C$ 146

Good deal one-way

C$ 158
Best time to beat the crowds (4% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from Toronto Pearson Intl to Denver Intl
(avg. price over the last 2 weeks)
or less
or less

Top tips for finding cheap flights to Boulder

  • There is no major airport in Boulder. It is instead served by Denver Intl Airport.
  • Looking for cheap airfare to Boulder? 25% of our users found tickets to Boulder for the following prices or less: From Calgary C$ 158 one-way - C$ 184 round-trip, from Vancouver Intl C$ 226 one-way - C$ 186 round-trip, from Ottawa C$ 192 one-way - C$ 264 round-trip
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be January, February and December. The cheapest month to fly to Boulder is August.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boulder flight deals.

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Top 5 airlines flying to Boulder

Scores according to KAYAK customer reviews
8.7
Korean AirOverall score based on 4970 reviews
8.8Boarding
8.6Comfort
9.0Crew
8.5Entertainment
8.4Food
Airline reviews
Pros: "Nice, clean efficient. Comfort was good."
Cons: "The crew was great but pretty impersonal. Not a great selection of movies."
Read more about Korean Air
Pros: "Nice, clean efficient. Comfort was good."
Cons: "The crew was great but pretty impersonal. Not a great selection of movies."
Pros: "Movie"
Cons: "if the music list is great with latest songs.. charging of phone took so long to be charged"
Pros: "Good selection of entertainment"
Cons: "The food"
Pros: "Onboarding on time and kind"
Pros: "The 2nd flight plane was alright"
Cons: "Flight attendants have poor English and get upset if you ask for snacks or anything that makes them have to get supplies"
Pros: "I liked sleeping"
Cons: "The flight attendants don’t understand English well so asking for water or some items I was completely ignored. To make up for lack of WiFI actually the entertainment system is awful. They ran out of food items and did not return to replenish drinks or remove waste"
Cons: "The seats on the plane had ample leg room, even in economy. The service was excellent. The staff was very polite and efficient. All of this made for a pleasant experience even for the long trip. Thank you Korean Airlines. I would recommend you to all traveling overseas."
Pros: "Crew was great"
Cons: "Movie selection, food options, loud alarm before boarding"
Pros: "Great service. Clean plane, good seating"
Pros: "Legroom was generous, crew were attentive and polite, although alcohol availability was stingy."
Cons: "Food quality was poor bordering on tasteless, more importantly service of lukewarm egg meals is guaranteed to earn an "Air Typhoid" award, and is inexcusable."
Pros: "Service and food was good."
Pros: "what I don't like .? let me tell you. I den't even know I have to go to. Alaska I Though i have to transfer delta air I have to transfer my lugege. I I'm 72 yet old it' not very easy I diden't want miss my fly I had heard time !"
Cons: "Attendants were all business, no smiles. Movie selection was limited."
Pros: "Very clean and polite flight crew."
Cons: "I wasn’t able to choose my seat at 24hr check in so I was stuck in the middle and getting out was awkward as I would have to wait for person in aisle seat to eat, wake up or get up themselves."
Pros: "Unlike flights in the US, they provided pillows, blankets, slippers, a water bottle and headphones in your seat before you boarded at no extra charge. They were very organized, efficient and quick about boarding."
Cons: "My seat was chosen for me. However, leg room was excellent even in the least expensive seats."
Pros: "The cabin crew are the most professional and beautiful in the airline business."
Cons: "The fact that the flight was delayed over 4 hours, added to the 7 hour layover that had, made the trip very long. I would of liked at least a voucher for a hotel to sleep, because lounge chairs are not very comfortable."
Cons: "Seat room was too small, couldn't comfortably fit in seat"
Pros: "Entertainment"
Cons: "A little bit crowded"
Pros: "Good food!"
Cons: "I dont know"
Pros: "Flight attendants were very nice and leg room space was more than other flights"
Cons: "Flight was a total of 1 hour - 20 minutes late to Seoul, thus causing my wife and I to run to make our connection to NYC."
Pros: "The service & cleanliness."
Cons: "The seats."
Pros: "Very reliable, quick boarding"
Pros: "Was very far but the crew was very helpful and attentive all the way here. We had an infant with us and the crew did everything to make him comfortable when he was fuzzy."
Pros: "Food arrived quickly and the empty tray was removed quickly when the meal had been eaten"
Pros: "Great seat and fairly decent food."
Pros: "Food, service"
Pros: "Boarding was quick and easy. I didn't have the food onboard but it smelled alright. Staff happily kept offering to refill my water on the ~2 hr flight (probably more frequently than JAL asked during my 13 hr flight a couple months ago...). Overall, good flight. Professional staff. We didn't crash so that's always good."
Cons: "Seat was uncomfortable, but when you're flying economy nowadays, that's pretty much expected. Took a while for us to get into the air but that was probably just due to it being a holiday and potentially many flights backing up the runway."
Pros: "it was not crowded"
Cons: "plane is old my luggage was left behind in souel"
Pros: "Boarding was quick and efficient. Plane was clean, the seats and leg room were good. Cabin attendants were very friendly and attentive during the entire flight. Entertainment system was easy to use and had a lot of movies and other stuff to keep you busy. Headphones and slippers were provided. Enjoyed my flight. Will fly Korean Airlines again if I have the chance."
Pros: "Everything (the comfort, the crew, etc.) was first rate and the flight was on-time. You cannot ask for more. One tip---check in on line and you can afford the lines at the counter."
Cons: "No complaints."
Pros: "Had a fantastic time, it exceeded my expectations."
Pros: "Staff is so friendly. Amazing legroom in economy, comfy seats. The food was great. They even offered packets with tooth brush and tooth paste. The plane's cleanliness is also stellar. I took a 14.5 hour flight that felt like a 5 hour flight. Korean Air's attention to detail sets the bar for all airlines"
Cons: "Nothing negative what so ever."
Pros: "Customer service - flight attendants were friendly & quite accommodating for all customers. Plane was quite clean, complimentary toothbrushes in the bathroom was a pleasant surprise. Food is hit or miss, but typically better than competitors. The personal TV has a number of new releases and is easy to use."
Cons: "It was a bit warm on the entire flight and as many other customers have mentioned, the seats were a tad uncomfortable; albeit nothing out of the normal for economy class."
Pros: "Excellent Service !!! All you can Drink (Beer/Wine). Two Delicious Meals Served. A Third One if you were still hungry. All these Included With The Price I Paid! Less than$650 R/T during the Off Season. Plus, Good Selection of On Board Movies and Programs. Prompt and Courteous Service from the Korean Airlines Ladies. Took Off On Time, and Arrived On Time. Actually, on the way back, we got in early by 35 Mnts. Will Definitely Book Again With Korean Airlines. No Regrets !"
Pros: "Food was definitely above average. Cabin service was good."
Cons: "Not took off on time. No explanation or apologies from the captain."
Pros: "KA broke handle in my luggage and it was difficult to make them pay back some reasonable amount of money for that (my suitcase was just one year old) but at the end they did a lot. Love their metal cutlery instead of plastic ones. It's not only better to eat with them but also better for environment."
Pros: "Service was nice and speedy"
Cons: "Seat was stiff"
Pros: "nothing"
Cons: "Food is terrible. Boarding was late, late taking off, late parking at gate that caused many of us missing our connection flight. Terrible experience with Korean airlines."
Pros: "courteous manner, efficient crew."
Pros: "The movie selection"
Cons: "Let's start with the overrated leg space and seating comfort. It was cramped as with any other regular airline. Seats in the economy section are not comfortable and have no back support. These seats should have better cushions and back support. Our flight attendant had a bad attitude after we asked for wine and didn't offered us any beverages for at least two occasions. No warm towel either. She just skipped us like we were not there. The meals are just ok. Nothing remarkable. Then we stand in line for almost two hours after a 14.5 hours flight to get through immigration. The overall experience was not good at all and for that price the comfort and service should be much better."
Pros: "I really appreciated getting a meal on the plane despite the short two hour flight. I've always liked flying Korean Air due to their cleanliness, presentable flight attendants and good customer service."
Cons: "The only thing I seemed to have a problem with was the volume and clearness that came out of my headphones. Although the headphones were provided by the airlines, the volume came out a little unclear and kind of scratchy. Other than that, everything was great."
Pros: "Smooth travel"
Pros: "Fast Chaco in and nice crew"
Cons: "The food was not great and no vegetarian options"
Pros: "The planes were very clean and in good working order. The crew was excellent. We had a very short connection but were met as we got off our first flight in Seoul and given great instructions about how to quickly get to our connection through security while our flight to SFO was being held for 15 minutes. The food was very good, choice of movies and TV excellent. Our bags made it to SFO despite the short connection. All in all I couldn't ask for a better way to make a 20 hr trip to the other side of the world."
Pros: "It was really the best flight I've been on! A very comfortable and relaxing trip. The staff were very kind and happy to answer any questions that came up. Overall I was very impressed and highly recommend Korean Air!"
Pros: "I liked the flight entertainment and the food, generally. I found some staff members extremely friendly and others less so."
Cons: "It's the transfer with customs check again which is really not necessary and very inconvenient. The line was always long."
Pros: "Nice airport and huge"
Pros: "The movies were ok"
Cons: "My flight was delayed twice. We were told that we would depart at 715 but had to sit in the plane until 9. There was a very fine snowfall on Seoul but whoever was in charge of defrosting equipment didn't start until much later. The flight attendanta didnt give us any information until I asked why we had not taken off yet. No refreshments were offered during this entire time. The food was horrible and the seats werw very uncomfortable. This partcular flight to Bangkok was handled very poorly and I will never fly with Korwa Air again. Absolutely awful."

Choice of movies were limited

Cons: "Great flight, great flight staff."
Pros: "Yes, it was great."
Pros: "The flight attendants were so awesome and beautiful! Food and snacks were great and the amount of time we were fed. They came around in a timely manner to get trash and ask what we wanted to drink."
Cons: "More variety of options for the vegan meals..."
Pros: "Attentive crew !"
Cons: "add low carb meal option please!"
Pros: "Excellent"
Cons: "Lousy food taste bland out of date movies"
Pros: "ANA is nothing but amazing. Great customer service and pleasant ambiance."
Pros: "the ANA folks at the departure check-in went out of their way to get me on my flight. You see, I got to the airport right before boarding. Their response? They literally escorted me through security, waited for me at the immigration checkpoint, and brought me to the boarding gate! I love ANA! :)"
Pros: "The cabin staff were extremely caring."
Pros: "The staff of ANA are so friendly and accommodating. When checking in, the woman at the counter moved me to a window seat from the middle, free of charge. They were very patient and helpful."
Cons: "The food was a little strange, I had salmon and rice as “breakfast” with iceberg lettuce side salad. The pieces of salmon were little shreds with a funky taste. Not bad, but not what I wanted on a long red eye flight. Also I wish there’d been more Hollywood movie selections."
Pros: "Polite, attentive, and amiable staff show they take pride in their top notch service. Entertainment options (movies, documentaries, travel guides) on screen are also a huge plus."
Pros: "Overall the flight met expectations for service, comfort and food."
Cons: "Variety of entertainment (or lack of), and the flight being continuously delayed. Even though the flight ended up departing just an hour later than initially scheduled, I would rather receive one notification for a 1-hour delay, than four notifications for 15-minute delays."
Pros: "The staff of ANA took superb care of us from the moment we entered the airport (both SEA and NRT); kindness, excellent food (choose the seafood diet, the food is excellent and you get served first!) and helpful directions in English whenever we looked the slightest bit confused. I will always look to fly ANA going forward. oh, and comfortable economy seats; enough room (I am 6'2") and no numb bum."
Cons: "Seats are way too small, incredibly uncomfortable to the point of painful ness. More luggage space"
Pros: "Loved from the booking on kayak and all the services provided by the airline until landing."
Cons: "Nothing to mention ....but I did not get the &instead tell me where to get my luggage...I had to find out on my own"
Cons: "Purchased tickets through Kayak on ANA with confirmation. Bumped to United after confirmation. Although I realize both companies are Star Alliance, the bait & switch is unacceptable & I would NOT have purchased these tickets for United. Flight had much more turbulence than my experience on ANA which is why I refuse to fly any other airlines. Will recommend against Kayak to everyone I know."
Pros: "Great experience overall"
Pros: "Crew was fantastic. Really polite and attentive. Liked that they offered liquids throughout the flight to keep us hydrated. Good experience overall."
Cons: "Entertainment - didn't have to many movies I liked. Food was just ok. I enjoyed the soy sauce beef and rice the most."
Pros: "The crew are all nice and helpful"
Pros: "On time. Nice 787 Dreamliner. Very comfortable flight."
Pros: "Ground staff and in-flight crew were excellent. The food was very good. The business class seat was comfortable."
Cons: "Got flagged for secondary screening prior to boarding, although it probably wasn't ANA's decision. Video quality of the In-flight entertainment wasn't that great. The AC power plug could have been in a better spot. My power adapter would not fit."
Pros: "Everything"
Cons: "Nothing. It was perfect. Comfortable, cute stewards"
Pros: "crew and food was great"
Cons: "seat cushion was a bit on the dead side I found myself trying to figure how to fit as many folks in the same space more comfortably. Maybe swapping every other seat to face backward so we have more arm / shoulder room? Idk"
Cons: "Flight attendant didn't mention so well about drink service."
Pros: "The entertainment touch screen didn't work at first, but mentioned it to a crew, it was rebooted right away and worked fine after all. Thank you."
Pros: "Friendly crew, delicious meals, comfortable seats. Would fly no other airline to Japan."
Pros: "The crew was always around if you needed anything."
Cons: "Wifi was slow, expensive, and you’re limited to 100MB instead of unlimited & luggage people broke my top handle on my suitcase, so it’s pain to move it around now."
Pros: "Customer service was pretty solid."
Pros: "Friendly staff. English language not too much of an issue. Ample personal space in economy class compared to other carriers."
Cons: "Asian Vegetarian meal not very good. Seems like whichever company they use to buy the food makes a half hearted effort in their selections for the food tray. If you're going to put a couple small pieces of lettuce and a cherry tomato into an already small container and call it salad, why bother? The rest of the meal wasn't pleasing either. The fruit was nearly frozen it was so cold. The entree had a few different things but still a weird combination of veggies."
Pros: "The crew was nice."
Cons: "Dinner"
Cons: "I wish I had mentioned that I was pregnant. Then maybe I didn't have to sit in middle seat..."
Pros: "the place. new. lots of space for the legs. air inside the plane was better than others."
Cons: "kosher food is a no go. you need to improve this. also to hold fruits for vegi clients."
Pros: "The flight was very well organized and the plane left on time and arrived exactly on time. The service was excellent even though the plane was close to full."
Cons: "Nothing"
Pros: "Good"
Cons: "No"
Pros: "The ANA stuff at Chicago airport is nice and helpful"
Cons: "My mom has to stay seated "90 degree" the whole time from Tokyo to Chicago (NH12). The seat is broken and she cannot adjust it to a comfortable position"
Pros: "Food and movies options."
Cons: "Not enough help to put my carry on on the overhead luggage storage."
Pros: "Not much to complain about. If the snacks can be provided at the galley freely, that would be perfect."
Pros: "I missed my flight. The customer service agent was awesome!"
Cons: "Flying United. I missed my flight. The gate was packed with people so I sat literally a quarter mile away. The flight was delayed and I got a text telling me new departure time. I show up for new departure time. Plane left six minutes earlier. First thanks for the bad information. Second thanks for not paging me. Third I don't care when the plane is supposed to leave. Just tell me what time to be at the gate so I can stand around after an international flight. Oh and if a flight attendee to squawk rudely at a paying customer when we do land, why I'd just have to ask myself AGAIN ... why do I fly United?"
Pros: "ANA has great service, because they staff trip you very well. Everyone worry that you have a great experience, before and during flight."
Pros: "Seat"
Cons: "Food was a bit salty. Bread was so cold."
Pros: "The flight attendants were very polite and kind."
Cons: "The food was not to my taste. I did enjoy the ice cream though! Perhaps it was very Japanese (which I am not tremendously familiar with), but even the pasta with sauce which I had the impression was going to be more Italian style, seemed odd. I felt like it was supposed to be gourmet, but just came off strange. I was wishing for something more straightforward."
Cons: "Nippon kept the planes uncomfortably warm. Also, we were not in an exit row, but our seats still didn't recline."
Pros: "Messed everything up!!!"
Cons: "Messed everything up!!!"
Pros: "Great seats in business class. Lots of privacy. Great service as well."
Cons: "American style Food could have been better. Didn't try the Japanese food."
Pros: "Cabin crew provided great service!"
Pros: "Good air crew. Good manners and attention to detail. Excellent members at check-in."
Cons: "i asked a crew for a drink.. and they refused."
Pros: "n/a"
Cons: "The captain failed to update the passengers and crew of significant change in flight path and delay. The flight flew off course for almost 30 minutes, while the flight attendants required everyone to remain seated due to supposed turbulence. We felt no turbulence for almost 25 mins. No update was given to passengers while we flew far off course. I motioned to the flight attendant, who was seated due to turbulence warning, to ask why we were off-course, but she could not get up. Many passengers were pointing to the flight path animation, to point out that we were flying straight north, instead of southeast. The flight attendant then called the captain for an update, and then the captain finally made an announcement about weather delays around shanghai."

Nice short flight. No problems!😀

I booked my flight business class trip to Thailand with kayak, but my final leg from Seattle to Denver was not processed correctly though Kayak (according to Qatar Airways). As such my first class ticket for a three hour flight turned into a 9 hour flight from Seattle Anchorage to Denver economy middle seat and no one is willing to answer what happened or take responsibility!!

Pros: "The male steward was very nice"
Cons: "Flight was delayed on tarmac for 2 hours better communication"
Cons: "Delayed boarding but received notification from Kayak was good."
Pros: "Friendly crew. Great movie selection through gogo inflight entertainment!"
Pros: "Aircraft was clean and comfortable. Crew was efficient and friendly. The whole experience was excellent!"
Cons: "There was lots of entertainment available but plain old music was not an option. What if I don't want to watch a movie or TV, just listen to music!"
Pros: "none"
Cons: "Cause the flight was canceled I have to call the airlines to get the refund, which not 100% refund, it makes me disappointed"
Pros: "Great crew, nice plane"
Cons: "More varieties of snacks"
Cons: "Seat cushions are too thin."
Pros: "I liked that when due to a medical reason, I was able to be given the option of rebooking my flight even though there would be a penalty and extra charges and I would need to pay the difference."
Cons: "When I called to rebook my flight within the year and about 3 months in advance of the desired date, unfortunately Latam made multiple errors and also told me that rebooking flights only are eligible for more expensive flights. Even though there were other less expensive flights that I was able to find and see online, they insisted the only flight available had a price difference of $4,000+ dollars. the original ticket was around $550 so this was absurd. Not helpful at all, how frustrating."
Pros: "Great on time too"
Cons: "Very happy"
Pros: "The seat was comfortable and the plane wasn’t over booked."
Cons: "I didn’t like that we took off an hour late."
Pros: "Comfortable seats"
Cons: "Delayed, may of been beyond the pilots control. Scrambled seating arrangements."
Pros: "Even though there was no TV screen in the headrest, we were all provided with IPads to view. The controls on the IPad were quicker than the in headset TV's. The seats were comfortable and we all received a flight packet that included a toothbrush, eye shades, ear plugs and a pair of socks for our comfort! Blankets and pillows were in our seats when we arrived."
Cons: "I missed being able to see our flight path. On a long flight it's difficult to keep track of where we are and now much longer we will be in the air without the flight tracker. My baggage was misplaced, so I was delayed by needing to fill out forms for lost luggage. Thankfully, it was located before I reached my connecting flight."
Cons: "Two rows up from us, I kid threw up all over the center aisle as we were pulling away from the gate. We returned to the gate to allow a cleaning crew to board and clean. However, the cleaning job was rushed and left remnants of the throw up behind which smelled the whole 2.5 hour flight. It really felt unsanitary and unsafe being that it’s unknown what caused the child to get sick. It very well could have been a stomach virus and could have infected the people in rows around the incident due to the mediocre cleaning job. I understand that it’s important to keep flights on-time, especially for connecting flights, but the safety of the passengers and their health should ALWAYS be the #1 priority."
Pros: "The flight attendant was friendly."
Cons: "I missed the flight"
Cons: "i wish Alaska would fly straight to Denver from Montana. I fly from Montana to Denver a lot and it ends up being a whole day of travel instead of a couple hour flight."
Pros: "The plane had far more leg room than typical airlines which was a pleasant surprise. It was newer than most, the flight attendants were polite and accommodating and the ride was smooth!"
Cons: "No complaints"
Pros: "It was a short flight. The overhead bins weren't overloaded."
Cons: "Boarding was a hassle. The flight was too crowded. The food was non-existent.. Seats were uncomfortable."
Pros: "Flew Alaska air - Plenty of leg room and much more than any qantas domestic flight!"
Pros: "I didn't have to set next to a 500 pound cow."
Cons: "Your beer and wine is sooooooo expensive."
Cons: "Food and wine way over priced."
Cons: "45 minute delay due to fog"
Pros: "I'm a big fan of Alaska Airlines and their partner Horizon Airlines. I travelled from Edmonton to Denver via Seattle last night. All the staff if pleasant and treats you as a valued customer."
Pros: "Friendly staf. comfortable seats. And no charging for checknig my bags."
Pros: "Boarding was a breeze, crew communicated well, seats were comfortable, plane wasn't too hot or too cold"
Cons: "Had a problem with checking my baggage in anchorage which led to $300 being held from my account for 5 days. They refunded my baggage fee though"
Pros: "N/A. Because of bad weather on Vancouver Island, my flight to Vancouver was delayed two hours and I missed my 230p flight to Seattle. Alaska had no other flights available from Vancouver that would get me to San Diego and other later flights that day from other airlines were over booked. I stayed the night and flew out the next morning on a direct flight to San Diego. The flight was fine. The flight crew was nice, they offered us drinks and snacks and the air condition worked. The reason I included the AC is sometimes it doesn't work and that's miserable. There's not too much else to add."
Pros: "charging outlet"
Cons: "light delay. no service."
Pros: "Everything but…"
Cons: "You lost my backpack with $2000 worth of hiking gear that I will not be able to replace before I am supposed to leave on a trip. How could this happen?! This bag was full of all the material possessions in the world that matter to me."
Pros: "Friendly staff. Made up time after a mandatory tire change."
Cons: "Other passengers not listening to the staff."
Cons: "I had booked my flight to take off at 2:30 PM, but when I checked into London Gatwick, my boarding pass given was 7:30 PM. Of course there's no Alaska desk so I couldn't ask anyone there. When I got to Vancouver, they said they weren't sure why I was bumped, but there were seats left on the plane. However, I had to go to the gate to change my flight because I had a checked bag. Got to the gate, and of course, it was sold out. And they told me they weren't sure if the 7:30 PM flight would be taking off. So I grabbed my bags, made my way via train/bus/hitchhiking across the American border where my dad picked me up. Never got a single reason why I was bumped in the first place."
Pros: "Small plane and short flight. Not too much to expect other than get there on time which they did"
Cons: "No complains"
Pros: "Flight crew was courteous."
Cons: "Nada"
Cons: "not able to know my seat till a day before flight ."
Pros: "Flight attendants were quick and efficient during a medical emergency."
Cons: "We had two hard landings (in Seattle and again in Ontario - same crew) and hit turbulence coming in toward Ontario that literally forced a flight attendant to her knees in the aisle."
Pros: "Almost everything. First time flying with Alaska Airlines thought the food would be better o thought the food would be better on such a long flight but it was enough to snack on until I got to Seattle great experience in between flights was able to get an earlier flight to Denver"
Cons: "Wish there was a little bit more offered for food but overall a fantastic experience mahalo"
Pros: "Just fine. Staff was helpful and actually very kind crew (stewardess) I don't recall her name but middle aged blond. Very nice."
Cons: "Charis could have more room and there was bad turbulence but what can be done about that? we arrived safe and sound and that was good."
Pros: "entertainment"
Cons: "very rough landing, delayed flight with little communication"
Pros: "Great service and very organized."
Pros: "Early flight, and short. I think I slept through it. Woke up sore, but eh I'm not surprised by that. I'm a giant and no one woke me up for anything so I was satisfied."
Pros: "Flight was quick with wonderful views of the San Juan islands"
Cons: "content with everything on this flight."
Pros: "Glad I discovered Alaska Airlines!"
Pros: "time of flight"
Cons: "The plane was tiny. Everyone had to check standard carry-on luggage"
Pros: "It got cancelled due to 3 inch of snow. And I missed work in Denver because of it. Very inconvenient"
Cons: "I would like to not have it cancel"
Pros: "Offering price"
Cons: "Real price. Ridiculous after carry-on and other fees"
Pros: "Promptness of flight"
Cons: "Cramped seating"
Pros: "It's short flight it's ok. Not applicable on entertainment and food"
Pros: "good"

We flew First Class to LA from Denver on the Delta-branded contract airline - Sky West. On the way back, we flew First Class on a Delta Airlines owned jet, and the experience was so much better. The flights should have been comparable; but unfortunately cost-cutting by Sky West was evident.

Cons: "Wouldn’t change a thing! I don’t always fly! But when I do!! I fly delta!!"
Cons: "For options none. No drink carts at all. Had coffee once after I asked. Poor quality entertainment. Just a huge waste of money."
Cons: "The main economy seats were far too narrow."
Pros: "I always have a consistently good experience on Delta. Everything was great."
Cons: "My flight was delayed almost 3 hours. Not good. Once in the air it was fine."
Pros: "Everything ok. I was hoping to buy food but glad to see almonds as one of the free snacks. Delta seems to be upping its game a bit lately."
Cons: "No US carrier seems able to master smooth boarding without standing waits."
Pros: "No food, late by hour"
Pros: "The crew was great and the free entertainment was great"
Cons: "Bring back pillows and blankets especially on red eyes out of Anchorage"
Cons: "1.5 hour delay...no reason given!"
Pros: "The seat was great, I wish all seats on the plane were that comfortable"
Cons: "Nothing, everyone was great"
Pros: "The male crew member was excellent. He was responsive and speedy with trying to find a solution. He gave me a few flyer miles for my trouble and was empathetic, which is rare."
Cons: "The tv/monitor didn’t work so there wasn’t any entertainment for the majority of the flight."
Pros: "The crew was great and super nice!"
Cons: "Screens with games, more leg room, and not having kids behind us messing with tray tables the whole flight."
Cons: "Better screens for in-flight movies. More legroom or upgrade options."
Pros: "Entertainment"
Cons: "Boarding at JFK.Always messy"
Pros: "Boarding was quick"
Cons: "No entertainment, plane was small"
Pros: "Good entertainment selection and great crew"
Cons: "Seats are more uncomfortable relative to other airlines"
Cons: "First delay notification: 1 hour 20 minutes 1 hour later, Second delay notification: 3 hours 15 minutes 2 hours later: Third delay notification: 3 hour 50 minutes Fourth delay notification: 4 hours 25 minutes Fifth delay notification: 4 hour 32 minutes No explanation for reason. Last time flying Delta."
Pros: "Early and middle seat was open!"
Cons: "Coffee tasted like fish. :("
Pros: "Delta cramps people into these planes and forces you to put your bags under a seat because they stuff at the overhead spaces. They nickel and dime you for every single thing. There was even one person I saw who had to pay for his headphones to listen to the onboard entertainment. I think Delta should quit being so cheap with the profits they make and give it back to your flying customers. It borders on gouging."
Cons: "Delta cramps people into these planes and forces you to put your bags under a seat because they stuff at the overhead spaces. They nickel and dime you for every single thing. There was even one person I saw who had to pay for his headphones to listen to the onboard entertainment. I think Delta should quit being so cheap with the profits they make and give it back to your flying customers. It borders on gouging."
Pros: "Entertainment choices were excellent, many new movies available, so I was able to see movies is been meaning to watch. There were drinks available."
Cons: "The air vents barely trickle out any air anymore. No relief to be had. Airline crews say hi and goodbye but that doesn't make them friendly."
Pros: "The crew on the airplane was great. We had 2.5 hours turbulences but the crew started to give out drinks as soon they got the ok from the pilot"
Cons: "We went in LGA to the Baggage drop off and the employee there was super rude. On the flight to New York with Delta we had to check our carry ons at the gate because it wasn't enough room for bags in the airplane.so we asked when we checked our one suitcase if we can/should check our carry ons to avoid having to do it at the gate. The delta employee told me sure no problem. He checks in my one suitcase I purchased gives me the tracking paper and says ok have a good flight. I asked him so what is with our carry ons and he told us that that would cost 25$ and we can't check those in at the drop off?!?We ended up taking the carry ons with to the gate and then off course there wasn't enough room on the airplane that we had to check it in. And surprise it was free?? We had never issues with Lufthansa, icelandair etc. with checking our bags at drop off to not needing to carry it around and than still end up to check it at the airplane. Every airline has been more than happy that we volunteer to check our bags that they don't have the trouble at the gate."
Pros: "We boarded close to on time, no hassles. Allowed my husband and me (retired military) to board early, thank you."
Cons: "LAX security is awful. We never left the airport (arrived LAX from Sydney AU) yet were forced thru security again. Had to remove shoes, was scanned and "frisked" by TSA to get to Denver. To go to Australia, Denver TSA waived the removal of shoes, skipped the scan for the metal detector and no one touched me, ditto for LAX on the trip to Sydney. Where's the uniformity or standards for TSA?? Why did I have to be subjected to this garbage on the way home?? This is why I despise flying. It makes no sense to me. This ruined what was a great vacation."
Pros: "Love the built in tv’s with free entertainment."
Cons: "The plane got delayed on the runway and the shut the engines off so the plane got super hot, but even after we got up in the air it never cooled down. Normally I’m freezing on flights, but I just sat sweating this whole flight. It was terrible."
Pros: "The seats had plenty of leg room and the crew was was very kind."
Cons: "My seat was uncomfortable and I was seated in the only row of the aircraft without entertainment for a four hour flight. Then on top of that the passenger next to me removed his shoes and you could smell his feet from a mile away but the flight attendants never requested for him to replace his shoes."
Pros: "I usually have had great experiences with Delta. The meal selection was limited. By the time they made it up to my seat they had run out of what we wanted. Also, the entertainment system at my seat and my husbands wasn’t working well. One of the bathrooms had a cabinets Tvst oliiiooooiiooooioiooiiiooiio"
Pros: "In a pinch they were able t"
Pros: "Great in every way"
Pros: "It got me home, eventually."
Cons: "Poor communication, a 6 hour delay followed by a 7 hour layover (during which we had to sleep on an airport floor because Delta couldn't offer us any hotel vouchers). Gate agents disappeared after 7pm becuase they were due to be done with their shifts when our flight was originally supposed to leave at 6 pm. It felt like we were trapped in the movie The Terminal. Oh! And our bag was misrouted, because that was just how things went those 2 days. All in all a 6 hour trip turned into 18 hours. I could have driven home in that amount of time!"
Cons: "could not check in on line as you did not give us the confirmation of the carrier we used which was not west jet the one you booked us through. You need to fix this problem for us to use you again"
Pros: "The crew as well as the pilot gave a lot of information to the customer due to a delay of 10min. Very professional. The pilot even said good bye in person to the customers leaving the plane, I really appreciated it :) The whether conditions in Seattle were very bad (windy, bumpy, rain, and night) and the pilot landed the plane as a pro! Thank you!"
Pros: "free texting and entertainment!"
Cons: "our flight was delayed half an hour."
Pros: "Everything"
Cons: "Nothing. Delta is the best airline in North America"
Cons: "I don't like that I already completed this survey several days ago and have been receiving reminders to do so. I guess you don't have a good system in place for knowing who has and has not completed your surveys. That's too bad."
Pros: "Crew was all very nice"
Cons: "Flying is always uncomfortable"
Pros: "When deplaning in Denver, I was impressed that the captain was the staff who got behind my wheelchair and offered to push me up the walkway :)... New aircraft, kind staff, shorty flight!"
Cons: "Nothing disappointed, butt i didn't have any good besides pretzels."
Cons: "There was a kid screaming on both flights and t was not a good time"
Cons: "Excellent service excellent pilot"
Pros: "Overall, the flight was very smooth and I thought the crew did a great job."
Cons: "I know this is a federal regulation, but I have to mention it as it is part of the boarding process. For the life of me, I can't understand why it is necessary to go through security again after re-entering the country. Understandable that I have to go through customs, but going through security again is ridiculous."
Pros: "Free in flight entertainment"
Cons: "One of my bags went to Santa Fe"
Pros: "For once the food was good"
Cons: "Screaming out of control children. Parents not caring that their children were constantly running up and down the aisles. Crew unable or unwilling to intervene."
Pros: "Entertainment"
Cons: "This is my third flight this year with Delta and every time we wait for the "crew" to get off from another flight. And as soon as they get there we can board. It's getting very annoying. Fix it."
Cons: "One hour late after a stay over already 4 hours."
Pros: "WiFi, good flight attendants"
Cons: "Would like to see Direct TV along with Delta Suite so can watch live TV"
Pros: "Attendants and entertainment"
Cons: "Delays for no explained reason"
Pros: "One male attendant from the first class cabin - super sweet and attentive to our needs even tho we're not seating in the premium cabin"
Cons: "Junior attendants in economy comfort seat - so lazy and whiny!"
Pros: "Good flight, professional people."
Pros: "From the Ground crew to the Flight crew, you can feel the genuine care and thoughtfulness of everyone! They even remember you, if you fly often enough, and let you know how much they appreciate your business."
Pros: "plane had individual movies for free with each seat!"
Cons: "Several hours was added to my travel day when my Calgary to Seattle flight was cancelled and I was rerouted from Calgary to Vancouver to Seattle. It seems to me that if an airline initiated change that significant occurs, I should have an option given me to change my itinerary."

See previous comments

Pros: "NA"
Cons: "We paid for transportation to cancun and it didn’t happen. We hope there will be compensation for the lost day. So disappointing."
Pros: "Crew was very friendly!"
Cons: "Westjet connect was not available on this plane!"
Cons: "Cramped seats entertainment"
Cons: "Getting from one flight to the other was a major hassle. How many times do they have to check your boarding pass?"
Cons: "Flight experience was the way air travel use to be."
Pros: "Westjet is just overall awesome"
Cons: "On both legs the seat was super uncomfortable. Really hard."
Cons: "Seat assignments. My husband and I were not assigned seats together, however we were able to sit together because the seat next to me was empty."
Cons: "flight was delayed 2 hours, could have been some better communication on the delay"
Cons: "Frequent American Airlines passenger. Found WestJet had far more leg room and plenty overhead storage. Plane was clean and flight attendants where attentive."
Cons: "Minor point. They boarded the plane very early. We got to the gate 1/2 hour before departure, and were almost the last ones to board."
Pros: "very nice crew"
Pros: "Crowded"
Cons: "More leg room"
Pros: "Great crew and great flight"
Pros: "Crew were very good. The economy seats were "ok". Food was good and the service was very good."
Cons: "Entertainment didn't have enough new movies to watch. The leg room could've been better."
Pros: "The crew was efficient, but not like some WestJet flight attendants where they crack jokes, & make everyone feel glad they were on that flight."
Cons: "The pilot was going too fast on taxiing to the runway (trying to catch up from a ground delay), & nearly overshot the runway. Had to stop very suddenly and make a sharp turn. Not a great way to begin a flight"
Pros: "Flight was fine"
Cons: "Having my luggage. 2nd flight and 2nd time my luggage didn’t arrive with me."
Cons: "On time boarding"
Cons: "Flight was delayed 2 hours, then at the gate boarding didn’t start till 10 mins before take off. Took off almost an hour after the delayed take off time."
Cons: "I was told I had time to run to washroom before boarding, and 5 min later the boarding area was empty and I was locked out. Plane was ready to leave me because the guy at desk forgot to tell them I wasn’t there yet. Thankfully I was able to hunt someone down to let them know I was there."
Pros: "Quiet and comfortable"
Pros: "Friendly staff And I love it you go direct to Belize."
Pros: "Excellent all round. Good price. Nice seats. Excellent staff. Good boarding and disembarking. Highly recommended."
Cons: "It does not have free food and entertainment, but for the price this is acceptable."
Pros: "We left on time and arrived on time! That's all I really ask!"
Cons: "Nothing, everything was fine."
Cons: "Boarding was not enforced by zones. When people line up it is better staff announce zones and force people to not get in line"
Pros: "Flight attendants, movie on board, price"
Cons: "Plane was delayed and the baggage handlers in Denver were Atrocious!! I actually took video I was so shocked!"
Pros: "Quick"
Cons: "A little cold"
Pros: "Great service when checking in. Flight on time and comfortable."
Pros: "I did not like being told flight duration by ground crew and pilot that was wrong. They said it will board at x hour and flight Mie is 4 hrs 20minutes. That makes one think departure plus flight time equals arrival. NO ONE MENTIONED OVE 1 hour taxi time. Getting in four hours late, BTW the rain delay was not really accurate. There was no rain until after we were due to depart! Not enough fuel as loaded so after circling the had to land inYYZ ZTO REFUEL. Seats were uncomfortable, with hard spots like springs that did not give.I did not like being told flight duration by ground crew and pilot that was wrong. They said it will board at x hour and flight Mie is 4 hrs 20minutes. That makes one think departure plus flight time equals arrival. NO ONE MENTIONED OVE 1 hour taxi time. Getting in four hours late, BTW the rain delay was not really accurate. There was no rain until after we were due to depart! Not enough fuel as loaded so after circling the had to land inYYZ ZTO REFUEL. Seats were uncomfortable, with hard spots like springs that did not give.I did not like being told flight duration by ground crew and pilot that was wrong. They said it will board at x hour and flight Mie is 4 hrs 20minutes. That makes one think departure plus flight time equals arrival. NO ONE MENTIONED OVE 1 hour taxi time. Getting in four hours late, BTW the rain delay was not really accurate. There was no rain until after we were due to depart! Not enough fuel as loaded so after circling the had to land inYYZ ZTO REFUEL. Seats were uncomfortable, with hard spots like springs that did not give.I did not like being told flight duration by ground crew and pilot that was wrong. They said it will board at x hour and flight Mie is 4 hrs 20minutes. That makes one think departure plus flight time equals arrival. NO ONE MENTIONED OVE 1 hour taxi time. Getting in four hours late, BTW the rain delay was not really accurate. There was no rain until after we were due to depart! Not enough fuel as loaded so after circling the had to land inYYZ ZTO REFUEL. Seats were uncomfortable, with hard spots like springs that did not give.I did not like being told flight duration by ground crew and pilot that was wrong. They said it will board at x hour and flight Mie is 4 hrs 20minutes. That makes one think departure plus flight time equals arrival. NO ONE MENTIONED OVE 1 hour taxi time. Getting in four hours late, BTW the rain delay was not really accurate. There was no rain until after we were due to depart! Not enough fuel as loaded so after circling the had to land inYYZ ZTO REFUEL. Seats were uncomfortable, with hard spots like springs that did not give.I did not like being told flight duration by ground crew and pilot that was wrong. They said it will board at x hour and flight Mie is 4 hrs 20minutes. That makes one think departure plus flight time equals arrival. NO ONE MENTIONED OVE 1 hour taxi time. Getting in four hours late, BTW the rain delay was not really accurate. T"
Pros: "Excellent service and smooth flight!"
Pros: "Kind helpful staff"
Cons: "That you have to pay for entertainment and food on long haul flights"
Pros: "The crew was good and the boarding process went smoothly and fast."
Cons: "The screens were so old and bad that it would be a total waste of money to pay for the PPV channels. Seats were hard and unconfortable"
Pros: "I always use Kayak to book my flights! The website is user friendly and the prices you see are round trip. WestJet is fantastic! Service is great, the seating is spacious for the price. Always seems to be on time or early arrival."
Pros: "Fairly smooth itinerary. Clean plane and friendly workers. Cramped seats, no entertainment system, three pretzel snack and not enough overhead space with everyone trying to cram too many personal items onboard makes for a frustrating experience. Not enough competition amongst Canadian operators. Expensive flight for such a short trip yet still a nickel and dime operation. Hopefully service will improve."
Cons: "See above"
Pros: "Smiling faces and humor from the crews."
Cons: "None."
Pros: "It is always an adventure flying into Lethbridge....maybe I should leave it at that. The crew both inside the terminal and on the flight were great, the service is great. It’s a very loud ride....if you have noise triggered headaches....I’m sorry. You’re in a flying cigar tube....up close with every other passenger and the open cockpit is a new experience....but totally fascinating too. The pilot and co-pilot are young but very compitant. The weather has a huge impact on your flight because if there is any wind you will get tossed around and the landing in Lethbridge is more of a roller coaster ride. Let me sum it up like this....if your not good with REALLY loud noise, or claustrophobic, or have any motion sickness issues.....rent a car and drive!!!"
Cons: "Don’t need to get there the 90 mins ahead as AC states is the policy, especially if you are on the 5 am flight because they aren’t. I made that mistake arriving at 3:30 am for my 5am flight and no one showed up til after 4am. It was really annoying to not know that ahead of time."
Pros: "The plane was clean, and seating is very comfortable with enough leg room. Its one of the best domestic rides I had."
Pros: "My first trip started on a poor note; I got to airport about an hour before boarding, only to find out that my flight was rescheduled from 9:30am to about 6:15pm ( or so) on that same day without prior notice. I went up to the counter and asked for confirmation for the switch and inquire if there was an issue, which may have affected my original flight. Turned out that the change was due to weather conditions at Toronto (makes sense). I had suggested that it would have been nice to receive some sort of notification, before starting that day way too early and inconvenience of going to pickup my car from the airport parking, only to come back again. The attendant sympathized with my plight and compensated me with a lunch voucher (which was nice of him and WestJet). Matter was resolved; I came back to catch my flight and the trip was wonderful :)"
Cons: "I didn't like the fact that my flight was rescheduled without receiving any notification from Westjet."
Pros: "We survived"
Cons: "On an 8 hour flight there’s no complimentary meal. I paid for a meal and it was worse than free plane food and starved for the rest of the trip. The chairs were horribly uncomfortable with no lower back support and we were not even given pillows and blankets. There was also no free entertainment. I rented a tablet and had it taken away an hour before landing while I was in the middle of a movie. I might have been ok with that if the flight attendant had politely asked for it back rather than rudely waving and pointing while I stared at her blankly trying to figure out what she wanted. Next time I’ll pay a bit more for an airline that respects its passengers and our comfort."
Pros: "I travelled alone with a baby and all the staff at Westjet wete so helpful"
Pros: "It was great experience once again. I always travel with WestJet as it is always on time."
Cons: "That every time I travel I always get the farthest seat if not on #28 it's 24...wish next time I can get in the middle at least. Other than that all is good."
Pros: "Staff"
Cons: "No wine to purchase this time"
Cons: "Seats were so crammed together. When the person in front mived their headrest back my knees were crushed and I xould not sit comfortably. I am 5'10. Not super tall. Nees more leg room."
Pros: "The overall experience on my westjet trip was great. Everything west jet does - and all the groups in the airport are fantastic !"
Pros: "The West Jet reps everywhere were calm, cool, and friendly. I thought they were terrific. In Edmonton, the women from West Jet did their best to help and keep the waiting disgruntled passengers informed. In Kelowna, when I discovered my luggage was still in Calgary, the West Jet rep was cheerful and helpful. How could I possibly be annoyed?"
Cons: "Wrong. I ended up in Kelowna."
Pros: "Main stewardess was very pleasant. Not full flight so I moved back and had a seat to myself."
Pros: "Crew was cheery, in-flight entertainment innovation evident, plenty of opportunity for water/snacks"
Cons: "We were heckled by gate crew about whether my dog’s carrier was too small for him. Many suggestions were made that we were subjecting him to animal cruelty, and that we were abusive to him. He’s 7lbs, so he can’t be much smaller a dog, and his carrier it turns out, doesn’t fit under WestJet seats, despite being within carry-on luggage dimension limits (their life jackets take up most of the legroom), and thus could not be any bigger. Did they want me to have a smaller dog, or a Euclidean space-defying carrier? I suppose they were suggesting that taking a dog aboard WestJet is abusive, because they certainly don’t provide adequate space for anything larger than a hamster, they hassle you about it, and they charge you $50 for the fun of it. One agent had the nerve to reach into his carrier without permission, unannounced, and invade his personal space, him being a rescue and very anxious."
Pros: "I flew through the air in a metal container across the country in the time it would have taken me to drive 400 km, so that's pretty neat."
Cons: "Provide complimentary movies West Jet. Parading around tablets to rent for $6 is a bad look."
Pros: "Before taking this flight, I was very nervous because of all the bad reviews on here and other sites. The only good reviews seemed to be by people from Alberta (not really trustworthy, as they seem to support anything that's from Alberta, and note that Westjet is based in Alberta...). But I was blown away by how organized Westjet was and how nice they were. All the flights were on time (I had a few layovers), the staff was helpful....I really have no complaints. Sure, they don't have a plethora of great in-flight entertainment such as movies, etc. But when I fly, I'd rather pay less, have the staff be nice/organized, and just bring a darn book to entertain me. It was a great first flight with this company. I would fly with them again....and I can't remember the last time I said that about any other airline. So do yourself a favor: Don't listen to the bad reviews on here (unless you're obsessed with in-flight entertainment and big-butt first class seats)."
Cons: "The movie and T.V. show selection was bad. But that's not a big deal for me...."
Pros: "mostly everything that an airline can offer is always on par !"
Cons: "seat sealction - I've booked in advice but seat selection is always a headache. I prefer to have front seats (closes to front in econly class, emergency area) but I got stuck all the way in the back by the washrooms. It would be amazing if on my way back to Calgary I can have a better option?"
COVID-19 information

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Masks required on board, masks provided on flights to Boulder

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Middle seats unavailable to book on flights to Boulder

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