YYC - DEN

C$ 170 Find Cheap Flights from Calgary to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Calgary to Denver departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Calgary to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Calgary to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 284
Overall average: C$ 586
United Airlines
Thu 8/1Sat 10/1
YYC - DEN • Direct
Cheapest one-way flights
C$ 170
Typical prices: C$ 200-C$ 425
Multiple Airlines
Fri 5/12
YYC - DEN • 2 stops
Our travellers' advice
AI-generated summary based on content written by travel experts and KAYAK users
United's Economy Plus offers more legroom for comfort.
Consider checking bags on United to ensure carry-on space.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
United Airlines
Cheapest • from C$ 284 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 61% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 32% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Calgary to Denver (YYC-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Calgary to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Calgary to Denver

Thu, 8 Jan - Sat, 10 Jan
United Airlines Logo
6:15 a.m. - 8:55 a.m.YYC-DEN
2h 40mdirect
United Airlines Logo
11:42 a.m. - 2:21 p.m.DEN-YYC
2h 39mdirect
C$ 284United Airlines
Find Deal
Mon, 8 Dec - Tue, 9 Dec
Multiple Airlines Logo
8:55 a.m. - 10:18 a.m.YYC-DEN
25h 23m1 stop
Multiple Airlines Logo
12:59 a.m. - 11:44 a.m.DEN-YYC
10h 45m1 stop
C$ 286Multiple Airlines
Find Deal
Thu, 15 Jan - Thu, 22 Jan
United Airlines Logo
6:15 a.m. - 8:55 a.m.YYC-DEN
2h 40mdirect
United Airlines Logo
11:42 a.m. - 2:21 p.m.DEN-YYC
2h 39mdirect
C$ 300United Airlines
Find Deal
Fri, 12 Dec - Sun, 14 Dec
Multiple Airlines Logo
8:55 a.m. - 9:02 a.m.YYC-DEN
24h 07m1 stop
Multiple Airlines Logo
9:42 a.m. - 5:50 p.m.DEN-YYC
8h 08m1 stop
C$ 304Multiple Airlines
Find Deal
Thu, 8 Jan - Mon, 12 Jan
Delta Logo
7:40 a.m. - 3:09 p.m.YYC-DEN
7h 29m1 stop
Delta Logo
6:23 p.m. - 11:02 p.m.DEN-YYC
4h 39m1 stop
C$ 311Delta
Find Deal
Fri, 5 Dec - Sat, 6 Dec
Multiple Airlines Logo
7:50 a.m. - 7:28 p.m.YYC-DEN
11h 38m2 stops
Multiple Airlines Logo
12:59 a.m. - 11:44 a.m.DEN-YYC
10h 45m1 stop
C$ 314Multiple Airlines
Find Deal
Sun, 1 Feb - Thu, 5 Feb
Multiple Airlines Logo
7:35 p.m. - 11:20 a.m.YYC-DEN
15h 45m1 stop
Multiple Airlines Logo
6:00 a.m. - 3:09 p.m.DEN-YYC
9h 09m1 stop
C$ 315Multiple Airlines
Find Deal
Thu, 27 Nov - Sun, 7 Dec
Delta Logo
12:41 p.m. - 10:28 p.m.YYC-DEN
9h 47m1 stop
Delta Logo
5:45 a.m. - 1:40 p.m.DEN-YYC
7h 55m1 stop
C$ 317Delta
Find Deal
Fri, 5 Dec - Sun, 14 Dec
Multiple Airlines Logo
1:25 p.m. - 4:39 p.m.YYC-DEN
27h 14m1 stop
Multiple Airlines Logo
9:42 a.m. - 5:50 p.m.DEN-YYC
8h 08m1 stop
C$ 318Multiple Airlines
Find Deal
Thu, 8 Jan - Sun, 11 Jan
United Airlines Logo
6:15 a.m. - 8:55 a.m.YYC-DEN
2h 40mdirect
United Airlines Logo
7:15 p.m. - 9:53 p.m.DEN-YYC
2h 38mdirect
C$ 319United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Calgary to Denver flights

Get data-powered insights and trends into flights from Calgary to Denver to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Calgary to Denver?

The average price of all round-trip flights from Calgary to Denver clicked on KAYAK for each day over the last 12 months.

When flying from Calgary to Denver, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Calgary, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Calgary to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Calgary to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Calgary to Denver is July, where tickets cost C$ 258 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is C$ 586 and C$ 465 respectively.

Can I save money by flying with a layover from Calgary to Denver?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 247 on average.

How far in advance should I book a flight from Calgary to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Calgary to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Calgary to Denver, you should book around 3 weeks before departure, which saves you about 61% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Expert advice

Expert advice for your flight from Calgary to Denver

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
WestJet

WestJet's Premium cabin offers extra legroom and priority boarding, ideal for a comfortable short flight.


WestJet's Extended Comfort seats provide extra legroom and priority boarding, enhancing travel efficiency.

Air Canada

Air Canada offers priority check-in for higher fare classes and elite status, saving time at the airport.


Air Canada's Wi-Fi is free for messaging with Aeroplan membership, enhancing connectivity during short flights.

United Airlines

United offers Priority Boarding for purchase, ensuring carry-on space and a smoother boarding experience.


United's Economy Plus seats offer up to 15 cm more legroom, enhancing comfort on short-haul flights.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on WestJet, Air Canada and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Good to know

Low seasonJanuary
Cheapest flightC$ 170
Best time to beat the crowds but there is an average 55% increase in price.
Most popular time to fly and prices are also 29% lower on average.
Flight from Calgary to Denver

When to book flights from Calgary to Denver

Are your dates flexible? Find out the best times to travel from Calgary to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Calgary to Denver: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Calgary to Denver 
Verified travelerFlew with United AirlinesYYC-DENAug 2024
Denver International is a really nice airport, but it should be for a hub! A lot of stuff is actually open until 10:30 or 11pm, so that’s nice. Pretty good place to do an overnight layover too…just make sure to get some snacks in case you can’t sleep.
VictoriaFlew with United AirlinesYYC-DENMar 2024
A tip I have is if you’re in a 4/5 boarding class you might want to check your bag ! There’s not enough room for everyone’s carryon above if it’s a full flight.

FAQs for booking flights from Calgary to Denver

  • What is the cheapest flight from Calgary to Denver?

    In the last 3 days, the lowest price for a flight from Calgary to Denver was C$ 170 for a one-way ticket and C$ 284 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Calgary to Denver?

    All the following airlines offer inflight Wi-Fi service on the Calgary to Denver flight route: United Airlines, WestJet, Air Canada, Delta, American Airlines, and Aeromexico.

  • Which aircraft models fly most regularly from Calgary to Denver?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Calgary to Denver flight route.

  • Which airline alliances offer flights from Calgary to Denver?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Calgary and Denver, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Calgary to Denver?

    There are direct flights from Calgary to Denver on a daily basis.

  • Which is the best airline for flights from Calgary to Denver, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Calgary to Denver are Delta and United Airlines. With an average price for the route of C$ 387 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of C$ 438 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Calgary to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Calgary to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Calgary to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Calgary is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Calgary to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to Calgary with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Calgary to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from Calgary up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Calgary to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 350 or less one-way and C$ 558 or less round-trip.

Prefer to fly direct from Calgary to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Calgary to Denver Intl.
Find which airlines fly direct from Calgary Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Calgary to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more nonstop flights

Direct returns

Denver Intl to Calgary

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more nonstop flights

Reviews of the top 4 airlines flying from Calgary to Denver

 
See real verified KAYAK customer reviews for airlines flying from Calgary to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Calgary to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8007 reviews
7.3Food
7.9Entertainment
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

10.0 ExcellentDuane, Nov 2025PBI - ATL
Read more Delta reviews

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

the over had ligth did not work'd for the all way

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

DELTA does a terrific job making sure you are well taken care of during the flight, gives you assurance before the flight through numerous email notifications about your upcoming flight & lastly good follow up after the flight making sure your needs were mat. It has been, is & will continue to be my carrier of choice in all my future travels. Good Job DELTA

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Food good . No entertainment. Need to use wifi to access your own apps. Eg Amazon Prime, YouTube. They don't tell you unless you ask.

I was seated near a "stinky" person. That's not the fault of Westjet🙁😶‍🌫️

The ceiling leaked water on me. The toilets smelled very bad in the rear cabin

When I purchased the flights I included the luggage, the luggage was not added and got charged the full price anyway. Had to pay for the luggage at check in. Initial flight was delayed, we missed our 9am connection (flew with my wife), then the airline rebooks us to the next flights, putting my wife in at 1.40pm and me at 4pm, what a crazy wait time. We managed to fix it with customer service and they put me in the 1:40pm flight too, but they left my baggage behind in the 4pm flight. When arrived to my destination, of course no luggage. It was delivered to the address thankfully late at night. The experience sucked.

Very good experience. Great cabin crew. Much better than expected

Typical Canadian airline experience. Charger and tray were broken, food was poor quality, and yet you're still paying more than flights with equal to better service than elsewhere globally.

Not enough food option. And not enough advices or information about what we are gonna eat.

my carry-on bag was delayed and I did not receive it until the day of my return at the airport. This delay caused me significant inconvenience, as I did not have access to my personal belongings for the duration of my trip. I had expected to rely on my carry-on items, and being without them negatively impacted my travel experience.

Technology issues at the bag-check counter caused a delay, and we were unable to check out our bags, ultimately missing our flight. They offered no assistance other than telling us to book another flight out of Calgary. We arrived with plenty of time; if there hadn't been an issue with the kiosk and the length of the lines due to the technical issues, we could have made it home.

Worst check in and bag drop off experience. Staff were incredibly rude given that it’s the WestJet system that is faulty.

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Was not sent a link to check in online. Tried to check in online using website. Site didn’t work. Called support line, was told it often didn’t work. Went to counter at airport to check bags and get boarding passes. Had to stand in a lineup. They were unable to tell me how much to pay. Had to take a paper to another counter, took a long time to be told what I owed. I fondly remember the days of checking in online, getting my boarding pass digitally, paying for my luggage on line, scanning my passport at the airport to get my luggage tags, and putting my luggage on the conveyor. Easy peasy. Air Canada has really taken a step back in time, and made what was an easy check in experience to one that seemed unduly long and frustrating.

Really out of Air Canada's control due to long delay because of mechanical issues. While doing their best, disappointed by their assumption that all passengers have smart phones. Should have communicated food voucher availability at gate area. Late arrival cost me an extra $51 because public transit was not available, Otherwise, feel Air Canada did their best dealing with their challenges. Will likely continue using them in the future.

They canceled my flight, I had to rent a car, drive 14 hours. They tell to go on line for a refund, but only offer $24 for a $210 flight and you can’t get hold of anybody by phone and no help from staff at the airport.

I wish to travel with Air Canada for my next trip

They were very attentive, polite, professional and great customer service skills.

I did not noticed baggage was separate - I had assumed international flights included luggage, so it surprised me I had to pay to check a bag.

Business class was not worth the extra charge. Overpriced for slightly larger seat. Nothing special. Small older plane.

Pros: The airplane was new and had in-flight entertainment (tablet behind seats) with new movies instead of watching on personal devices. Cons: the flight time was changed without informing us. When I booked the flight, the time was 13:30pm (also in the email confirmation). However, when I reached the airport, the time was conveniently changed to 14:55pm. When I asked at the counter, they said the flight always took off at this time. The booking was made by Air Canada, but the flight was operated by United.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

Everything you need to know for your flight from Calgary to Denver

Information on your arrival and departure airports