$129 Find Cheap Flights from Calgary to Colorado - Compare and Save

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 Colorado departing on 10/11. 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

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Cheap Flights from Calgary to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver1 stop$213
Colorado Springs
Colorado Springs2 stops$344
Denver
Denver1 stop$213
Colorado Springs
Colorado Springs2 stops$344

Book Cheap Calgary to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Calgary to Colorado 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 Colorado

Tue, Aug 18 - Tue, Aug 25
Air Canada Logo
4:25 pm - 11:52 pm
YYC
-
DEN
7h 27m
1 stop
Air Canada Logo
7:45 pm - 1:40 am
DEN
-
YYC
5h 55m
1 stop
$213Air Canada
Sun, Aug 16 - Sun, Aug 23
Air Canada Logo
12:30 pm - 11:52 pm
YYC
-
DEN
11h 22m
2 stops
Air Canada Logo
7:45 pm - 1:40 am
DEN
-
YYC
5h 55m
1 stop
$216Air Canada
Fri, Aug 28 - Mon, Aug 31
WestJet Logo
8:45 am - 11:20 am
YYC
-
DEN
2h 35mnonstop
WestJet Logo
12:15 pm - 2:45 pm
DEN
-
YYC
2h 30mnonstop
$217WestJet
Fri, Jul 17 - Sun, Jul 19
Air Canada Logo
3:05 pm - 11:12 pm
YYC
-
DEN
8h 07m
1 stop
Air Canada Logo
7:45 pm - 1:40 am
DEN
-
YYC
5h 55m
1 stop
$218Air Canada
Fri, Aug 28 - Mon, Aug 31
WestJet Logo
8:45 am - 11:20 am
YYC
-
DEN
2h 35mnonstop
WestJet Logo
12:15 pm - 2:45 pm
DEN
-
YYC
2h 30mnonstop
$225WestJet
Fri, Aug 28 - Mon, Aug 31
WestJet Logo
8:45 am - 11:20 am
YYC
-
DEN
2h 35mnonstop
WestJet Logo
12:15 pm - 2:45 pm
DEN
-
YYC
2h 30mnonstop
$226WestJet
Fri, Jul 17 - Mon, Jul 20
Multiple Airlines Logo
7:15 pm - 9:43 pm
YYC
-
DEN
2h 28mnonstop
Multiple Airlines Logo
7:45 pm - 1:40 am
DEN
-
YYC
5h 55m
1 stop
$227Multiple Airlines
Sat, Aug 22 - Thu, Aug 27
Delta Logo
7:45 am - 5:36 pm
YYC
-
COS
9h 51m
1 stop
Delta Logo
11:27 am - 8:35 pm
COS
-
YYC
9h 08m
1 stop
$395Delta
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
8:00 am - 1:17 pm
YYC
-
COS
5h 17m
1 stop
United Airlines Logo
11:30 am - 9:48 pm
COS
-
YYC
10h 18m
1 stop
$396United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
8:00 am - 1:17 pm
YYC
-
COS
5h 17m
1 stop
United Airlines Logo
11:30 am - 9:48 pm
COS
-
YYC
10h 18m
1 stop
$499United Airlines
Booking Insights

KAYAK's insights & trends for Calgary to Colorado flights

Get data-powered insights and trends into flights from Calgary to Colorado 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 Colorado?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Calgary to Colorado departing in August.

What is the cheapest Calgary to Colorado flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from Calgary found in the last 5 days was to Denver, at $156 round-trip. The most popular route is from Calgary (YYC) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 5 days was $156.

What is the cheapest time of day to fly to Colorado?

The average price for all round-trip flights from Calgary to Colorado depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $365 on average. Morning departures are around 21% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $520.

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

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 $170, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Calgary to Colorado, 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 Colorado is October, when tickets cost $44 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $136 and $135 respectively.

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

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

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

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

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 Colorado, 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 Colorado, you should book around 5 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$129
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Calgary to Denver

Flights from Calgary to Colorado: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Calgary to Colorado 
Verified travelerFlew with United Airlines
YYC
-
DEN
Apr 2026
The Denver airport has many shuttles and is well organized to leave the airport via Uber or bus or train. Just follow the instructions and mind the construction. They even have dedicated baggage pick up for snowboards and skis.
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 - booking Colorado flights

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

    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 Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Calgary to Colorado 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 Colorado?

    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 from Calgary to Colorado with an airline and back with another airline.

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

    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 from Calgary to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Calgary to the following destinations at these prices or less: Denver $216 one-way - $266 round-trip

Reviews of the top 4 airlines serving from Calgary to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Calgary to Colorado. 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 Colorado? 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.
7.8
DeltaOverall score based on 8452 reviews
7.2Food
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
Airline reviews

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

10.0 ExcellentCharles, May 2026
DTW - DEN
Read more Delta reviews

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

It was beautiful easy and smooth experience. Thank you. Will definitely get Delta for my next travel.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Delta flight was on time, seats were comfortable, and crew was nice.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

The flight attendants were friendly and seemed to like their jobs. I am not a high maintenance person, but they seemed to respond to people's needs and requests in a timely fashion with a smile.. I appreciate the benefits of complimentary snacks and beverages, as well as the relatively inexpensive checked baggage fee. (Although I would like it better if it were free! :) ) The only improvement that could be made to make the boarding process more efficient is to board the plane from the back. The alternative would be to board people with only a personal item first. This would reduce the wait time while others are stowing their baggage.

Ran out of my choice of main course in BClass. Kind of weird combo for substitute.

They were fast and I like how they used to entertainment system to play video about the safety.

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

Plane 3 hours late. Missed connection. No help from gate staff. App horrible. Lost connection repeatedly. No service desk. Finally got help from young girl driving cart.

Horrible; seating was atrocious - inadequate leg room and seat width tight even for a small individual. Profits shouldn’t be everything!

I flew basic economy, so it was what I expected. Crew was nice though, and flight was quick. Would recommend for flights under 6 hours, otherwise would upgrade to something with more leg room.

Airline staff was good the checkin process was ok but the plane itself was very bad the comfort was worst it was worst and the most stiff 5 hours of my life i felt claustrophobic

Calgary desperately needs a star alliance lounge in the transborder area for United.

Leg room was lacking. Legs crammed into seat in front.

Flight was delayed but reasonable notice and communication was always there for the passengers.

I think it would have been better to get a heads up to download the app before getting on the plane as I only had wifi in the airport and didn’t realize the plane was an older one. Maybe a little more communication before hand would be lovely. The seats as always were crammed and uncomfortable and trying to convince people to spend an extra 150 so that we have an extra foot of leg room was less then ideal.

Despite travelling ultra basic for the first time due to such increased rates we both managed with one bag each. Even boarding last wasn’t SO bad.

Flight was early. That’s the only positive I can share. I paid for wifi on the flight and it didn’t allow me to use any streaming services so it was a waste of $20. West Jet also lost my ski equipment on my way to a ski vacation. They told me it would be delivered to the hotel as soon as it arrived at the airport. It was never delivered. I had to pick it up at the airport on my way home. I am completely disgusted with my experience on west jet

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

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.

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.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

It took 30 minutes to check in with the Westjet rep. They didn’t have enough seats and she needed to make a call… I am always “randomly” selected to be checked at security. Their “randomly “ selection system may need some updating. They treat people like criminals. It is not appropriate behavior.

My experience was good with United too But only not so good thing was that at Calgary airport I was not given lounge access despite of flying business. Aspire lounge denied it to me, which was unfair I feel

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.

United did not permit online check-in from home as document scans were not getting uploaded. This should be fixed their app

Flights delayed over 4 hours with no compensation. No agents at counters to assist with re-booking.

It took 5 hour to get a crew to D Ice the plan. We had to sit on the runway for 5 hrs. in Calgary. It snows most of the winter. No proactive plan. In addition, after 3 calls to customer service they couldn't figure out how to have my wife and myself sit together on her birthday weekend. Everybody kept passing the buck. No decision from customer service, luggage drop off or check in team. The experience was a complete mess! I don't think we'll ever fly on this airline again.

The wifi I paid for did not work. The seats are tight.

There were no free snacks…little pretzel bag or cookies like we had on our flight out.

We culd not check in ovr the inrnt since e did not have the unied airlns boing efence Tis is alays a issue when boing coe shae flits witstr allince

They could have served at least some cookies with coffee or tea or juice.

The flight was on time, boarding was smooth. The crew was did an excellent job traffic controlling as people boarded.

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

Information on your arrival and departure airports