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$84+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEN
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Calgary to Denver Intl are usually found in July or June, booked 83 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 September 16, 2025.

Round-trip from

$144
(Kiwi.com)

One-way from

$84
(Kiwi.com)

Popular in

January

Cheapest in

July

Average price

$231

Good round-trip deal

$237 or less

Good one-way deal

$247 or less
From Calgary to Denver Intl
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One-way flight from Calgary to Denver Intl
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Highest demand for flights based on searches. 25% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Calgary to Denver Intl.
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Price to beat on a one-way flight from Calgary to Denver Intl.
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Find 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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Sat 10/116:15 amYYC - DEN
Nonstop2h 27mUnited Airlines
Sun 10/127:21 pmDEN - YYC
Nonstop2h 27mUnited Airlines
Deal found 9/16$143
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:00 amYYC - DEN
1 stop5h 38mAir Canada
Fri 10/36:05 pmDEN - YYC
1 stop6h 37mAir Canada
Deal found 9/14$147
This Air Canada deal was found by Cheapflights users on 9/16. 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.
Tue 9/308:25 amYYC - DEN
1 stop8h 08mAir Canada
Mon 10/66:05 pmDEN - YYC
1 stop6h 37mAir Canada
Deal found 9/16$156
This Kissandfly.com deal was found by Cheapflights users on 9/15. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/116:15 amYYC - DEN
Nonstop2h 27mLufthansa
Sun 10/127:21 pmDEN - YYC
Nonstop2h 27mLufthansa
Deal found 9/15$159
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:10 amYYC - DEN
1 stop6h 28mAir Canada
Sun 10/196:05 pmDEN - YYC
1 stop6h 37mAir Canada
Deal found 9/14$168
This Air Canada deal was found by Cheapflights users on 9/15. 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.
Wed 10/156:10 amYYC - DEN
1 stop6h 28mAir Canada
Mon 10/206:05 pmDEN - YYC
1 stop6h 37mAir Canada
Deal found 9/15$175
This Air Canada deal was found by Cheapflights users on 9/16. 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 10/26:10 amYYC - DEN
1 stop6h 28mAir Canada
Tue 10/218:40 amDEN - YYC
1 stop6h 42mAir Canada
Deal found 9/16$176
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:10 amYYC - DEN
Nonstop2h 43mUnited Airlines
Mon 12/297:15 pmDEN - YYC
Nonstop2h 38mUnited Airlines
Deal found 9/16$177
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:15 amYYC - DEN
Nonstop2h 38mUnited Airlines
Wed 11/511:44 amDEN - YYC
Nonstop2h 37mUnited Airlines
Deal found 9/14$187
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:55 amYYC - DEN
Nonstop2h 29mMultiple Airlines
Tue 9/308:55 pmDEN - YYC
1 stop20h 22mMultiple Airlines
Deal found 9/14$188
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:13 pmYYC - DEN
Nonstop2h 32mUnited Airlines
Sun 11/97:16 pmDEN - YYC
Nonstop2h 37mUnited Airlines
Deal found 9/15$189

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 September 16, 2025.
Use the filters below to find and compare flights from Calgary to Denver that are best for you.

Fly from

Calgary

Fly to

Denver

Route

Depart

Return

Price

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 10/15

7:00 am-12:38 pm

1 stop5h 38m

Denver Intl

Mon 10/20

6:05 pm-12:42 am

1 stop6h 37m

$168

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 12/18

6:10 am-8:53 am

Nonstop2h 43m

Denver Intl

Mon 12/29

7:15 pm-9:53 pm

Nonstop2h 38m

$177

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 10/29

6:15 am-8:53 am

Nonstop2h 38m

Denver Intl

Wed 11/5

11:44 am-2:21 pm

Nonstop2h 37m

$187

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sun 11/23

2:13 pm-4:45 pm

Nonstop2h 32m

Denver Intl

Sun 11/30

7:16 pm-9:53 pm

Nonstop2h 37m

$189

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 11/22

2:13 pm-4:45 pm

Nonstop2h 32m

Denver Intl

Fri 11/28

11:44 am-2:21 pm

Nonstop2h 37m

$189

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 11/24

6:15 am-8:53 am

Nonstop2h 38m

Denver Intl

Sat 11/29

7:16 pm-9:53 pm

Nonstop2h 37m

$189

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 11/4

2:13 pm-4:45 pm

Nonstop2h 32m

Denver Intl

Sun 11/9

7:16 pm-9:53 pm

Nonstop2h 37m

$189

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sun 12/21

6:10 am-8:53 am

Nonstop2h 43m

Denver Intl

Mon 12/29

7:15 pm-9:53 pm

Nonstop2h 38m

$195

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 11/4

6:45 am-3:42 pm

1 stop8h 57m

Denver Intl

Sat 11/8

6:23 pm-11:02 pm

1 stop4h 39m

$223

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 11/4

7:45 am-2:46 pm

1 stop7h 01m

Denver Intl

Tue 11/11

6:00 am-1:53 pm

1 stop7h 53m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 21 results
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The best insider tips for Calgary to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Calgary to Denver trip
Airports
YYC

For public transport, use Route 300 for a rapid transit bus into downtown Calgary from YYC.

Read more about YYCby Jenna Scatena
DEN

Use the A Line train for a 37-minute ride from DEN to Denver’s Union Station, running every 15 minutes.

Read more about DENby Emily Zemler
Our travel experts
Jenna Scatena

Jenna Scatena

Expert on YYC

Jenna Scatena

Jenna Scatena

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 Zemler

Emily Zemler

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

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 September 12, 2025.

Booking 83 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, October is the cheapest month in which you can book a flight from Calgary to Denver (average of $197). Flying from Calgary to Denver in March is currently the most expensive (average of $278). 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 September 16, 2025.

One of the essential ways to save on airfare from Calgary to Denver is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 50% 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 September 14, 2025.

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

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 September 16, 2025.
Peruse reviews from past customers who have flown with United Airlines, WestJet, and Air 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
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
WestJet
7.2
Good
3,093 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Food

6.6

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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 27m.

  • How popular is this Calgary to Denver flight route?

    Flights from Calgary to Denver Intl have been viewed 71 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 43m. Fly via Air Canada 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 WestJet. Our recent data shows that you can find tickets from as low as $100 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at $113 and $113 round-trip. WestJet is priced at 62% lower than the current average price of a flight leaving 3 months from now.

  • 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: Air Canada (81%), United Airlines (78%), Delta( 71%).

  • What are the cheapest flights from Calgary to Denver?

    On average you can expect to pay $473 for a flight from Calgary to Denver. The cheapest flight overall is $90 while the most popular route, (Calgary - Denver Intl) is currently priced at $144.

  • 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, October is the cheapest month in which you can book a flight from Calgary to Denver (average of $197). Flying from Calgary to Denver in March is currently the most expensive (average of $278). 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
Black Hawk
Westminster
Golden
Winter Park
Lakewood
Broomfield
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

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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
Calgary to Aspen 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$100Average$177FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$113Average$323FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$113Average$262FlexibilityNo cancel feeOn-time67%

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