HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$135+ Cheap flights from Calgary (YYC) to Denver (DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEN
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Calgary to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Calgary to Denver Intl are usually found in July or August, booked 82 days in advance, depart on a Friday or Saturday and return on a Friday

Cheap flight deals from Calgary to Denver

Cheapest flights from Calgary to Denver
Explore the most affordable flight options available from Calgary to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This Air Canada deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:25 pm
YYC
-
DEN
1 stop6h 45m
Air Canada
Sun 5/107:50 pm
DEN
-
YYC
1 stop5h 51m
Air Canada
Deal found 3/12$242
This Air Canada deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/276:00 am
YYC
-
DEN
1 stop6h 35m
Air Canada
Mon 5/47:50 pm
DEN
-
YYC
1 stop5h 51m
Air Canada
Deal found 3/13$249
This Air Canada deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:25 pm
YYC
-
DEN
1 stop6h 45m
Air Canada
Sun 5/107:50 pm
DEN
-
YYC
1 stop5h 51m
Air Canada
Deal found 3/10$251
This Air Canada deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:25 pm
YYC
-
DEN
1 stop6h 45m
Air Canada
Sun 5/37:50 pm
DEN
-
YYC
1 stop5h 51m
Air Canada
Deal found 3/12$258
This Air Canada deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:25 am
YYC
-
DEN
2 stops9h 25m
Air Canada
Mon 5/47:50 pm
DEN
-
YYC
1 stop5h 51m
Air Canada
Deal found 3/12$264
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:29 pm
YYC
-
DEN
1 stop8h 17m
Delta
Thu 5/710:48 am
DEN
-
YYC
1 stop9h 42m
Delta
Deal found 3/11$267
This Air Canada deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:25 am
YYC
-
DEN
1 stop6h 10m
Air Canada
Sun 5/37:50 pm
DEN
-
YYC
1 stop5h 51m
Air Canada
Deal found 3/13$278
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:29 pm
YYC
-
DEN
1 stop8h 17m
Delta
Fri 5/81:20 pm
DEN
-
YYC
1 stop7h 10m
Delta
Deal found 3/12$279
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:40 am
YYC
-
DEN
1 stop8h 56m
Delta
Thu 5/76:19 pm
DEN
-
YYC
1 stop4h 38m
Delta
Deal found 3/14$280
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:45 am
YYC
-
DEN
1 stop15h 09m
Multiple Airlines
Sun 5/1012:15 pm
DEN
-
YYC
Nonstop2h 30m
Multiple Airlines
Deal found 3/10$283

Find flight deals from Calgary to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(Air Canada)

One-way from

$135
(Air Canada)

Popular in

February

Cheapest in

July

Average price

$365

Good round-trip deal

$385 or less

Good one-way deal

$215 or less
Provider with most accurate pricing for Calgary-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Calgary-Denver Intl flights.
Search Deals
From Calgary to Denver Intl
Search Deals
One-way flight from Calgary to Denver Intl
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Calgary to Denver Intl.
Search Deals
Price to beat on a one-way flight from Calgary to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Calgary to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
Use the filters below to find and compare flights from Calgary to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 5/5

6:40 am-3:36 pm

1 stop8h 56m

Denver Intl

Thu 5/7

10:48 am-8:30 pm

1 stop9h 42m

$267

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 4/30

12:29 pm-8:46 pm

1 stop8h 17m

Denver Intl

Fri 5/8

1:20 pm-8:30 pm

1 stop7h 10m

$279

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 4/7

6:30 am-4:00 pm

1 stop9h 30m

Denver Intl

Sat 4/18

5:30 am-11:39 am

1 stop6h 09m

$376

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 3/30

6:00 am-8:36 am

Nonstop2h 36m

Denver Intl

Wed 4/8

11:19 am-1:53 pm

Nonstop2h 34m

$395

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 4/16

6:00 am-8:36 am

Nonstop2h 36m

Denver Intl

Sat 4/18

11:19 am-1:53 pm

Nonstop2h 34m

$396

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 4/17

6:00 am-8:36 am

Nonstop2h 36m

Denver Intl

Sat 4/18

11:19 am-1:53 pm

Nonstop2h 34m

$396

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 4/9

1:27 pm-4:03 pm

Nonstop2h 36m

Denver Intl

Wed 4/15

11:19 am-1:53 pm

Nonstop2h 34m

$425

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 4/7

6:00 am-8:36 am

Nonstop2h 36m

Denver Intl

Tue 4/14

11:19 am-1:53 pm

Nonstop2h 34m

$428

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 4/6

1:27 pm-4:03 pm

Nonstop2h 36m

Denver Intl

Mon 4/13

7:14 pm-9:48 pm

Nonstop2h 34m

$439
Quickest round-trip

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 6/5

8:45 am-11:20 am

Nonstop2h 35m

Denver Intl

Sat 6/13

12:15 pm-2:45 pm

Nonstop2h 30m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Calgary to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Calgary to Denver in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Calgary-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Calgary-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Calgary-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Calgary-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Calgary-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Calgary to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Calgary with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Calgary to Denver. Price data was last updated on March 13, 2026.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Calgary to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Calgary to Denver?

Currently, July is the cheapest month in which you can book a flight from Calgary to Denver (average of $98). Flying from Calgary to Denver in February is currently the most expensive (average of $279). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YYC to DEN?

Find hourly flight availability from Calgary to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 15, 2026.

One of the essential ways to save on airfare from Calgary to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 64% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Calgary to Denver. Price data was last updated on March 14, 2026.

Travelers seeking maximum savings on their Calgary to Denver flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Calgary to Denver?

The best insider tips for Calgary to Denver flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Calgary to Denver trip
Our travel experts
Jenna Scatena

Jenna Scatena

Expert on YYC

Journalist and Travel Writer, Jenna Scatena is an award-winning travel writer with a love for sharing stories and exploring new places, especially by Vespa. Though she's from San Francisco, she has spent a significant chunk of her vacation days over the last decade eating her way through Texas and sleeping in hotels around the world—especially in California, the Middle East, and Europe.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated March 15, 2026.
Peruse reviews from past customers who have flown with United Airlines,WestJet, andAir Canada from Calgary to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,427 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,427 reviews
United Airlines
7.4
Good
9,427 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
WestJet
7.2
Good
3,295 reviews
United Airlines
7.4
Good
9,427 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
10,801 reviews
United Airlines
7.4
Good
9,427 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Calgary to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Calgary to Denver?

    You will need to book a flight from Calgary to Denver Intl if you want to fly from Calgary to Denver. At least 3 different airlines have flights from Calgary (YYC) to Denver Intl (DEN) on a regular basis. There are 5 flights to Denver from the Calgary airport per day. If you manage to book one that is nonstop, then you can expect the flight time from YYC to DEN to be around 2h 30m.

  • How popular is this Calgary to Denver flight route?

    Flights from Calgary to Denver Intl have been viewed 77 times in the past calendar month.

  • How long is the flight from Calgary to Denver?

    There are many flights that can get you from Calgary to Denver in 2h 36m. Fly via Delta or United Airlines to get the fastest option. There are 898 mi between Calgary and Denver. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Calgary to Denver round-trip?

    Our cheapest airline available from Calgary to Denver is Air Canada. Our recent data shows that you can find tickets from as low as $74 on this airline. Additional options worth looking into are United Airlines and WestJet, starting at $91 and $95 round-trip. Air Canada is priced at 72% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Calgary to Denver one-way?

    The cheapest airlines for a one-way flight from Calgary to Denver are WestJet ($85), Air Canada ($95), and United Airlines ($116).

  • What are the most reliable airlines from Calgary to Denver?

    Before booking your flight to Denver from Calgary, check out the most reliable airlines to get you to your destination on time: Copa Airlines (93%), Air Canada (90%), United Airlines( 90%).

  • What are the cheapest flights from Calgary to Denver?

    On average you can expect to pay $788 for a flight from Calgary to Denver. The cheapest flight overall is $143 while the most popular route, (Calgary - Denver Intl) is currently priced at $240.

  • Can I find deals for flights from Calgary to Denver that include hotel bookings?

    Yes. In addition to deals on Calgary to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Calgary to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Calgary to Denver.

  • Can I find deals for business class flights from Calgary to Denver?

    Yes. Cheapflights offers flight deals from Calgary to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Calgary to Denver?

    Currently, July is the cheapest month in which you can book a flight from Calgary to Denver (average of $98). Flying from Calgary to Denver in February is currently the most expensive (average of $279). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Englewood
Fort Morgan
Brighton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Calgary to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Edmonton to Denver flights
Calgary to Colorado Springs flights

Top 3 airlines flying from Calgary to Denver

Discover the top 3 airlines that operate flights from Calgary to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$74Average$290FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$91Average$278FlexibilityNo cancel feeOn-time69%
WestJetCheapest$95Average$169FlexibilityNo cancel feeOn-time60%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.