YYC - DEN

$106 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 6/2. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$243
Overall average: $213
Multiple Airlines
Mon 5/4Wed 5/6
YYC - DEN • 1 stop
Cheapest non-stop
$341
Typical prices: $238-$325
Air Canada
Sat 3/14Sat 3/21
YYC - DEN • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
Consider checking your bag on United to ensure carry-on space.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
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Top airlines
WestJet
Cheapest • from $246 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers 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 • 32% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches 100s 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

Mon, May 4 - Wed, May 6
Multiple Airlines Logo
8:45 am - 10:49 pm
YYC
-
DEN
14h 04m
1 stop
Multiple Airlines Logo
12:15 pm - 2:45 pm
DEN
-
YYC
2h 30mnonstop
$243Multiple Airlines
Sat, May 30 - Mon, Jun 8
WestJet Logo
8:45 am - 11:20 am
YYC
-
DEN
2h 35mnonstop
WestJet Logo
12:15 pm - 2:45 pm
DEN
-
YYC
2h 30mnonstop
$246WestJet
Sat, Mar 14 - Sat, Mar 21
Air Canada Logo
6:25 am - 12:37 pm
YYC
-
DEN
6h 12m
1 stop
Air Canada Logo
7:05 pm - 10:24 am
DEN
-
YYC
15h 19m
1 stop
$255Air Canada
Thu, Feb 26 - Tue, Mar 3
Air Canada Logo
6:25 am - 12:37 pm
YYC
-
DEN
6h 12m
1 stop
Air Canada Logo
7:05 pm - 10:24 am
DEN
-
YYC
15h 19m
1 stop
$261Air Canada
Fri, Feb 27 - Mon, Mar 2
Delta Logo
12:40 pm - 10:27 pm
YYC
-
DEN
9h 47m
1 stop
Delta Logo
5:30 am - 11:48 am
DEN
-
YYC
6h 18m
1 stop
$262Delta
Sat, Feb 28 - Wed, Mar 4
Delta Logo
6:30 am - 4:39 pm
YYC
-
DEN
10h 09m
1 stop
Delta Logo
7:00 am - 11:48 am
DEN
-
YYC
4h 48m
1 stop
$263Delta
Sat, Feb 28 - Wed, Mar 4
Delta Logo
12:40 pm - 9:06 pm
YYC
-
DEN
8h 26m
1 stop
Delta Logo
7:00 am - 11:48 am
DEN
-
YYC
4h 48m
1 stop
$265Delta
Thu, Feb 26 - Wed, Mar 4
Multiple Airlines Logo
11:05 pm - 3:56 am
YYC
-
DEN
28h 51m
2 stops
Multiple Airlines Logo
8:54 am - 10:46 pm
DEN
-
YYC
13h 52m
1 stop
$276Multiple Airlines
Mon, May 4 - Wed, May 6
Multiple Airlines Logo
8:45 am - 11:20 am
YYC
-
DEN
2h 35mnonstop
Multiple Airlines Logo
9:00 pm - 7:40 pm
DEN
-
YYC
22h 40m
2 stops
$278Multiple Airlines
Fri, Feb 27 - Wed, Mar 4
Multiple Airlines Logo
11:05 pm - 12:42 am
YYC
-
DEN
25h 37m
2 stops
Multiple Airlines Logo
8:54 am - 10:46 pm
DEN
-
YYC
13h 52m
1 stop
$281Multiple 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.

If you are looking for a flight deal from Calgary to Denver, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Denver, Friday is the cheapest day to fly and Monday is the most expensive.

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 $180 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $389 and $350 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 $315 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 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 16 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, Air Canada and United Airlines

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.

Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYC

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$106
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly and prices are also 27% 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 travelers 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 $106 for a one-way ticket and $243 for a round-trip.

  • Do I need a passport to fly between Calgary and Denver?

    A passport is required to fly from Calgary to Denver.

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

    American Airlines, WestJet, and Aeromexico 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?

    Star Alliance is the only airline alliance operating flights between Calgary and Denver.

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

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

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

    The two airlines most popular with KAYAK users for flights from Calgary to Denver are United Airlines and WestJet. With an average price for the route of $278 and an overall rating of 7.4, United Airlines is the most popular choice. WestJet is also a great choice for the route, with an average price of $179 and an overall rating of 7.2.

  • 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. Booking your flights between Calgary and DEN can sometimes prove cheaper using this method.

  • 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 $209 or less one-way and $315 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 direct 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 direct flights

Reviews of the top 3 airlines serving 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.
7.4
United AirlinesOverall score based on 9215 reviews
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
7.1Entertainment
Airline reviews

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.

8.0 ExcellentAnonymous, Jan 2026
SJD - DEN
Read more United Airlines reviews

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.

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.

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

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.

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