YYC - DEN

C$ 150 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 30/5. 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$ 301
Overall average: C$ 285
Multiple Airlines
Thu 23/4Sun 26/4
YYC - DEN • 1 stop
Cheapest direct flights
C$ 313
Typical prices: C$ 222-C$ 349
WestJet
Mon 6/7Fri 10/7
YYC - DEN • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
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
WestJet
Cheapest • from C$ 313 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 67% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
July
Cheapest • 30% 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, 23 Apr - Sun, 26 Apr
Multiple Airlines Logo
3:35 p.m. - 12:20 a.m.
YYC
-
DEN
8h 45m
1 stop
Multiple Airlines Logo
12:15 p.m. - 2:45 p.m.
DEN
-
YYC
2h 30mdirect
C$ 301Multiple Airlines
Mon, 6 Apr - Wed, 15 Apr
Multiple Airlines Logo
7:35 p.m. - 3:45 p.m.
YYC
-
DEN
20h 10m
1 stop
Multiple Airlines Logo
2:30 p.m. - 11:00 p.m.
DEN
-
YYC
8h 30m
1 stop
C$ 309Multiple Airlines
Mon, 6 Jul - Fri, 10 Jul
WestJet Logo
8:45 a.m. - 11:20 a.m.
YYC
-
DEN
2h 35mdirect
WestJet Logo
12:15 p.m. - 2:45 p.m.
DEN
-
YYC
2h 30mdirect
C$ 313WestJet
Fri, 12 Jun - Mon, 15 Jun
Air Canada Logo
3:00 p.m. - 11:10 p.m.
YYC
-
DEN
8h 10m
1 stop
Air Canada Logo
7:50 p.m. - 1:41 a.m.
DEN
-
YYC
5h 51m
1 stop
C$ 319Air Canada
Mon, 9 Mar - Tue, 31 Mar
Multiple Airlines Logo
6:30 a.m. - 9:44 a.m.
YYC
-
DEN
27h 14m
2 stops
Multiple Airlines Logo
10:30 p.m. - 12:02 p.m.
DEN
-
YYC
13h 32m
1 stop
C$ 325Multiple Airlines
Thu, 18 Jun - Fri, 26 Jun
Air Canada Logo
4:25 p.m. - 11:12 p.m.
YYC
-
DEN
6h 47m
1 stop
Air Canada Logo
7:50 p.m. - 1:40 a.m.
DEN
-
YYC
5h 50m
1 stop
C$ 327Air Canada
Fri, 7 Aug - Sun, 9 Aug
WestJet Logo
8:45 a.m. - 11:20 a.m.
YYC
-
DEN
2h 35mdirect
WestJet Logo
12:15 p.m. - 2:45 p.m.
DEN
-
YYC
2h 30mdirect
C$ 328WestJet
Mon, 16 Mar - Tue, 24 Mar
Multiple Airlines Logo
7:35 p.m. - 9:01 a.m.
YYC
-
DEN
13h 26m
1 stop
Multiple Airlines Logo
10:40 p.m. - 12:14 p.m.
DEN
-
YYC
13h 34m
1 stop
C$ 329Multiple Airlines
Mon, 6 Apr - Wed, 15 Apr
Multiple Airlines Logo
11:30 p.m. - 9:45 p.m.
YYC
-
DEN
22h 15m
2 stops
Multiple Airlines Logo
2:30 p.m. - 11:00 p.m.
DEN
-
YYC
8h 30m
1 stop
C$ 331Multiple Airlines
Mon, 9 Mar - Tue, 31 Mar
Multiple Airlines Logo
7:35 p.m. - 9:44 a.m.
YYC
-
DEN
14h 09m
1 stop
Multiple Airlines Logo
10:30 p.m. - 12:02 p.m.
DEN
-
YYC
13h 32m
1 stop
C$ 334Multiple Airlines
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 Wednesdays.

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$ 244 (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$ 478 and C$ 477 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.

No, with an average price for the route of C$ 457, prices are generally cheapest when you fly direct.

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 4 weeks before departure, which saves you about 67% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Calgary to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on WestJet, United Airlines and Air Canada

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.

Good to know

Low seasonFebruary
Cheapest flightC$ 150
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly and prices are also 25% 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 Airlines
YYC
-
DEN
Aug 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 Airlines
YYC
-
DEN
Mar 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$ 150 for a one-way ticket and C$ 301 for a round-trip.

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

    American Airlines, Aeromexico, WestJet, and Air Canada offer inflight Wi-Fi service on the Calgary to Denver flight route.

  • 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$ 328 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$ 428 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$ 300 or less one-way and C$ 560 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,WestJet

United Airlines,WestJet

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines,WestJet

United Airlines,WestJet

Thursday

United Airlines

United Airlines

Friday

United Airlines,WestJet

United Airlines,WestJet

Saturday

United Airlines

United Airlines

Sunday

United Airlines,WestJet

United Airlines,WestJet

See more nonstop flights

Direct returns

Denver Intl to Calgary

Monday

United Airlines,WestJet

United Airlines,WestJet

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines,WestJet

United Airlines,WestJet

Thursday

United Airlines

United Airlines

Friday

United Airlines,WestJet

United Airlines,WestJet

Saturday

United Airlines

United Airlines

Sunday

United Airlines,WestJet

United Airlines,WestJet

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 8203 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
Airline reviews

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

2.0 MediocreMansoor, Feb 2026
DTW - RIC
Read more Delta reviews

Flight was delayed and no reasons provided. After the passengers were boarded, the crew made announcement that the captain has jot arrived and he would take another 15 mins. All passengers patiently sat until the captain came and started. Terrible experience!

Flight was delayed. No information on why it was delayed. After we boarded the flight, , the crew made announcement that the captain hs not arrived and he will take 15 mins more to arrive. Passengers were just sitting patiently for the captain to arrive and start, Terrible experience.

Awful - both legs. The check in was awful, getting on the plane required walking down a spiral staircase (dangerous), then taking a bus about 5 miles out from the terminal. The seat was broken (I was in business), there was no internet during the flight (both legs). The aircraft was very old. I saw rust in some place, tape holding things up in the bathroom. This was an unacceptable experience for such a long haul flight.

Totally worth the miles to upgrade to Delta Comfort. Plenty of legroom.

This was my first time flying Delta ever and I had a great experience!

Smallest leg room I've ever had on a plane.

They took all carry-on luggage from Groups 6 -9 - I was group 5 and waiting in line to board - they made me check my luggage too. That then went to baggage claim and delayed departure from the airport. There was overhead room in my seating area - Delta over reacted. Also, had a gentleman next to me that took up 1/2 my seat.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

bulkhead seat had very little legroom - even in bsiness class.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

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.

No kiosk to help pre boarding unlike other airlines, still lost the luggage despite its own crew/TSA or security tagging it, poor handling of lost luggage and possibly compensation is likely poor too.

Everything was great until we had to get our bags. The bags came out in several different batches over 90 minutes after we landed maybe more we got our bags. So much for the old West Jet where they promised bags in 20 minutes. I Next time I will pack lighter and go with a carry-on.

The flight was full and good as could be expected. We arrived early which is always a good thing.

Not sure what happened, but for some reason we had to sit on the plane for an extra 10 minutes once we arrived in Abbotsford. Obviously, it was an engine issue.

It was disappointing to see the huge number of people who were allowed to board who were claiming to either be disabled or needed extra time to board who practically ran to the gate as soon as boarding opened. One of the female flight attendants in the premium economy section refused to let a lady with an infant use the toilet next to row 9 to change her baby even though the path back to the rear toilets was blocked by staff and trolleys and said she would have to carry the baby to the toilet during the descent phase when turbulence was present. The passenger refused and the baby had to wait until landing. It would have been no problem to allow this infringement of weathers petty rules. The flight was also very cold due to a cold draft throughout the flight from the bulkhead ceiling which was not controllable.

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

Very bed experience never want to travel air canada anymore

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.

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

Information on your arrival and departure airports