YYC - DEN

$103 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 11/29. 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

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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Booking Insights
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

Wed, Oct 1 - Wed, Oct 8
Air Canada Logo
7:00 am - 12:38 pmYYC-DEN
5h 38m1 stop
Air Canada Logo
8:40 am - 4:52 pmDEN-YYC
8h 12m1 stop
$147Air Canada
Find Deal
Wed, Oct 15 - Sun, Oct 19
Air Canada Logo
6:10 am - 12:38 pmYYC-DEN
6h 28m1 stop
Air Canada Logo
6:05 pm - 12:42 amDEN-YYC
6h 37m1 stop
$168Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
6:15 am - 8:53 amYYC-DEN
2h 38mnonstop
United Airlines Logo
11:44 am - 2:21 pmDEN-YYC
2h 37mnonstop
$187United Airlines
Find Deal
Sun, Sep 28 - Tue, Sep 30
 Logo
8:55 am - 11:24 amYYC-DEN
2h 29mnonstop
 Logo
8:55 pm - 5:17 pmDEN-YYC
20h 22m1 stop
Sun, Sep 28 - Mon, Sep 29
 Logo
8:55 am - 11:24 amYYC-DEN
2h 29mnonstop
 Logo
7:00 am - 12:44 amDEN-YYC
17h 44m2 stops
Sat, Dec 20 - Wed, Dec 24
United Airlines Logo
6:10 am - 8:53 amYYC-DEN
2h 43mnonstop
United Airlines Logo
7:15 pm - 9:53 pmDEN-YYC
2h 38mnonstop
$202United Airlines
Find Deal
Sun, Sep 28 - Tue, Sep 30
 Logo
8:55 am - 11:24 amYYC-DEN
2h 29mnonstop
 Logo
8:55 pm - 4:55 pmDEN-YYC
20h 00m2 stops
Sat, Sep 27 - Mon, Sep 29
 Logo
11:50 am - 9:44 amYYC-DEN
21h 54m1 stop
 Logo
12:15 pm - 2:45 pmDEN-YYC
2h 30mnonstop
Wed, Oct 29 - Wed, Nov 5
Delta Logo
6:45 am - 3:42 pmYYC-DEN
8h 57m1 stop
Delta Logo
6:23 pm - 11:02 pmDEN-YYC
4h 39m1 stop
$223Delta
Find Deal
Sun, Sep 28 - Mon, Sep 29
Delta Logo
8:55 am - 11:24 amYYC-DEN
2h 29mnonstop
Delta Logo
12:15 pm - 2:45 pmDEN-YYC
2h 30mnonstop
$231Delta
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts and KAYAK users
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
+1
Top airlines
Air Canada
Cheapest • from $147 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 53% 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
Cheapest round-trip
$147
Typical prices: $166-334
Air Canada
Wed 10/1Wed 10/8
YYC - DEN • 1 stop
Cheapest non-stop
$187
Typical prices: $172-453
United Airlines
Wed 10/29Wed 11/5
YYC - DEN • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Expert advice

Expert advice for your flight from Calgary to Denver

 
Snippets provided in this section are AI-generated based on a summarization 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

Priority boarding for Premium passengers includes two free checked bags and extra legroom.


Bid on upgrades to Business or Premium for potentially lower prices than booking outright.

Read more about WestJetby Stefanie Waldek
Air Canada

Air Canada offers Wi-Fi on select flights; check availability five days before departure.


Economy passengers can purchase boxed meals on North American routes.

Read more about Air Canadaby Stefanie Waldek
United Airlines

United offers Priority Boarding for purchase, placing you in Zone 2.


United's Economy Plus seats offer up to six inches more legroom than standard economy.

Airports
YYC

YYC offers free Wi-Fi across the airport, named the best in Canada. Connect to “YYC-Free-WiFi” without needing to sign up.

Read more about YYCby Kaitlyn McInnis
DEN

For a quick city transfer, take the RTD A line train from DEN to downtown Denver in about 40 minutes.

Read more about DENby Harriet Baskas
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
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYC

Kaitlyn McInnis

Kaitlyn McInnis

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet Baskas

Harriet Baskas

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.

Read more
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.

How much is a round-trip flight from Calgary to Denver?

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 Sunday 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 $184 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $416 and $350 respectively.

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 53% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$103
Best time to beat the crowds but there is an average 54% 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 travelers 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 $103 for a one-way ticket and $147 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, Air Canada, WestJet, Delta, and United Airlines 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, and SkyTeam 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 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 $317 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 $166 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 $240 or less one-way and $190 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

United Airlines

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 direct flights

Direct returns

Denver Intl to Calgary

Monday

United Airlines, WestJet

United Airlines, WestJet

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

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 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 8929 reviews
7.3Comfort
7.1Entertainment
6.6Food
8.1Crew
7.7Boarding
Airline reviews

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.

6.0 GoodMarydoug, Aug 2025SJC - DEN
Read more United Airlines reviews

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.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

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.

The staff at the airport and on the plane were wonderful I especially wanna acknowledge the staff who boarded us at the Calgary airport. The women who helped us board at the airport were incredible… they were so kind and sweet…I very happy with WestJet and I am hoping I can fly more often to Canada.

7 hour layover was a drag. Free internet on the long leg was great.

From vancouver go calgary nd vice vetsa fligjt was delayed

It was good! Short flight and it was on time!

Staff was nice, helpful, and did all they could. I understand economy seats are bottom of the barrel, but we're crammed in there with others in our row.

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..

The app was great, service was wonderful, everything was quick and easy

On the flight from Montreal to Calgary the flight attendant we had was excellent. Unfortunately I did not get her name but she made the flight very comfortable and enjoyable.

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

Information on your arrival and departure airports

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