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$102+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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

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3. Compare prices and book

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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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$177
(Air Canada)

One-way from

$102
(Air Canada)

Popular in

January

Cheapest in

July

Average price

$250

Good round-trip deal

$266 or less

Good one-way deal

$210 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. 25% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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.
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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 October 30, 2025.

This Air Canada deal was found by Cheapflights users on 10/30. 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 11/146:00 amYYC - DEN
1 stop6h 37mAir Canada
Fri 12/58:45 amDEN - YYC
1 stop10h 19mAir Canada
Deal found 10/30$177
This Air Canada deal was found by Cheapflights users on 10/29. 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 11/116:00 amYYC - DEN
1 stop6h 37mAir Canada
Wed 5/206:55 pmDEN - YYC
1 stop5h 42mAir Canada
Deal found 10/29$187
This Air Canada deal was found by Cheapflights users on 10/30. 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 11/246:45 amYYC - DEN
1 stop10h 59mAir Canada
Thu 12/48:45 amDEN - YYC
1 stop10h 19mAir Canada
Deal found 10/30$195
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/62:13 pmYYC - DEN
Nonstop2h 32mUnited Airlines
Sun 12/147:16 pmDEN - YYC
Nonstop2h 37mUnited Airlines
Deal found 10/29$198
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Fri 11/212:13 pmYYC - DEN
Nonstop2h 32mUnited Airlines
Thu 11/2711:44 amDEN - YYC
Nonstop2h 37mUnited Airlines
Deal found 10/30$200
This Air Canada deal was found by Cheapflights users on 10/30. 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 11/246:15 amYYC - DEN
Nonstop2h 38mAir Canada
Thu 11/2711:44 amDEN - YYC
Nonstop2h 37mAir Canada
Deal found 10/30$204
This Air Canada deal was found by Cheapflights users on 10/29. 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 11/116:45 amYYC - DEN
1 stop5h 52mAir Canada
Tue 5/198:15 amDEN - YYC
1 stop14h 23mAir Canada
Deal found 10/29$206
This Air Canada deal was found by Cheapflights users on 10/29. 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 11/129:35 pmYYC - DEN
1 stop15h 02mAir Canada
Sat 11/158:45 amDEN - YYC
1 stop10h 19mAir Canada
Deal found 10/29$207
This Air Canada deal was found by Cheapflights users on 10/30. 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 11/122:13 pmYYC - DEN
Nonstop2h 32mAir Canada
Sun 12/143:53 pmDEN - YYC
1 stop8h 36mAir Canada
Deal found 10/30$209
This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:25 amYYC - DEN
2 stops9h 19mAir Canada
Sun 12/148:45 amDEN - YYC
1 stop13h 59mAir Canada
Deal found 10/30$217

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 October 30, 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

Fri 11/14

6:00 am-12:37 pm

1 stop6h 37m

Denver Intl

Fri 12/5

8:45 am-7:04 pm

1 stop10h 19m

$177

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 12/6

2:13 pm-4:45 pm

Nonstop2h 32m

Denver Intl

Sun 12/14

7:16 pm-9:53 pm

Nonstop2h 37m

$198

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 11/21

2:13 pm-4:45 pm

Nonstop2h 32m

Denver Intl

Thu 11/27

11:44 am-2:21 pm

Nonstop2h 37m

$200

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 1/14

6:15 am-8:55 am

Nonstop2h 40m

Denver Intl

Sun 3/15

8:05 am-12:29 am

1 stop16h 24m

$222

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 11/24

6:15 am-8:53 am

Nonstop2h 38m

Denver Intl

Sun 11/30

7:16 pm-9:53 pm

Nonstop2h 37m

$226

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 11/28

12:41 pm-10:28 pm

1 stop9h 47m

Denver Intl

Thu 12/4

11:12 am-8:57 pm

1 stop9h 45m

$228

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 12/11

2:45 pm-11:17 pm

1 stop8h 32m

Denver Intl

Sun 12/14

6:22 pm-11:13 pm

1 stop4h 51m

$228

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 11/28

12:41 pm-10:28 pm

1 stop9h 47m

Denver Intl

Fri 12/5

5:30 am-11:51 am

1 stop6h 21m

$228

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 11/20

7:45 am-2:59 pm

1 stop7h 14m

Denver Intl

Thu 11/27

7:05 am-11:51 am

1 stop4h 46m

$228

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 12/2

7:35 am-2:58 pm

1 stop7h 23m

Denver Intl

Sun 12/7

6:55 am-11:51 am

1 stop4h 56m

$231

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 24 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Calgary-Denver flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 October 24, 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, July is the cheapest month in which you can book a flight from Calgary to Denver (average of $100). Flying from Calgary to Denver in January is currently the most expensive (average of $210). 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 October 30, 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 60% 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 October 26, 2025.

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

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

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 October 30, 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
8,998 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
WestJet
7.2
Good
3,152 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,381 reviews
United Airlines
7.4
Good
8,998 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 2 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 32m.

  • How popular is this Calgary to Denver flight route?

    Flights from Calgary to Denver Intl have been viewed 78 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 32m. 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: Aeromexico (85%), United Airlines (83%), Air Canada( 80%).

  • What are the cheapest flights from Calgary to Denver?

    On average you can expect to pay $507 for a flight from Calgary to Denver. The cheapest flight overall is $142 while the most popular route, (Calgary - Denver Intl) is currently priced at $195.

  • 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 $100). Flying from Calgary to Denver in January is currently the most expensive (average of $210). 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
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$100Average$176FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$113Average$285FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$113Average$262FlexibilityNo cancel feeOn-time67%

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