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$125+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEN
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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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”

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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

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 December 4, 2025.

This Air Canada deal was found by Cheapflights users on 12/4. 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 12/186:00 amYYC - DEN
1 stop6h 37mAir Canada
Thu 12/258:45 amDEN - YYC
1 stop12h 14mAir Canada
Deal found 12/4$249
This Air Canada deal was found by Cheapflights users on 12/4. 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 12/206:00 amYYC - DEN
1 stop11h 59mAir Canada
Wed 12/248:45 amDEN - YYC
1 stop15h 44mAir Canada
Deal found 12/4$289
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Tue 12/97:35 pmYYC - DEN
1 stop13h 20mMultiple Airlines
Sat 12/131:02 pmDEN - YYC
1 stop9h 50mMultiple Airlines
Deal found 12/2$293
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Thu 12/113:35 pmYYC - DEN
1 stop8h 45mMultiple Airlines
Mon 12/157:00 amDEN - YYC
1 stop14h 51mMultiple Airlines
Deal found 12/2$297
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/147:35 pmYYC - DEN
1 stop13h 20mMultiple Airlines
Mon 12/159:05 pmDEN - YYC
2 stops22h 04mMultiple Airlines
Deal found 12/2$317
This Air Canada deal was found by Cheapflights users on 12/4. 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 12/229:35 pmYYC - DEN
1 stop15h 02mAir Canada
Sat 12/278:45 amDEN - YYC
2 stops22h 34mAir Canada
Deal found 12/4$320
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
Mon 12/812:30 amYYC - DEN
1 stop9h 48mMultiple Airlines
Wed 12/106:30 amDEN - YYC
2 stops34h 18mMultiple Airlines
Deal found 12/2$322
This Air Canada deal was found by Cheapflights users on 12/2. 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 12/195:40 amYYC - DEN
1 stop6h 57mAir Canada
Fri 12/268:45 amDEN - YYC
1 stop15h 44mAir Canada
Deal found 12/2$323

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$219
(Kiwi.com)

One-way from

$125
(Trip.com)

Popular in

January

Cheapest in

July

Average price

$340

Good round-trip deal

$385 or less

Good one-way deal

$271 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. 24% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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.
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 December 4, 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

Tue 1/20

7:35 pm-10:27 am

1 stop14h 52m

Denver Intl

Tue 2/10

8:45 pm-12:14 pm

1 stop15h 29m

$225

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 1/22

1:25 pm-4:25 pm

1 stop27h 00m

Denver Intl

Sun 1/25

9:10 am-5:50 pm

1 stop8h 40m

$236

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 1/15

6:30 am-4:44 pm

1 stop10h 14m

Denver Intl

Sun 1/18

11:33 am-8:54 pm

1 stop9h 21m

$255

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 3/5

7:40 am-3:02 pm

1 stop7h 22m

Denver Intl

Mon 3/9

10:50 am-8:45 pm

1 stop9h 55m

$262

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 1/29

7:30 am-4:56 pm

1 stop9h 26m

Denver Intl

Sun 2/1

10:29 pm-5:50 pm

2 stops19h 21m

$267

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 5/21

12:35 pm-8:00 pm

1 stop7h 25m

Denver Intl

Sat 5/30

6:55 pm-12:37 am

1 stop5h 42m

$268

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sun 5/17

12:35 pm-8:00 pm

1 stop7h 25m

Denver Intl

Sat 5/23

6:55 pm-12:37 am

1 stop5h 42m

$268

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 5/21

2:00 pm-4:38 pm

Nonstop2h 38m

Denver Intl

Sat 5/30

7:05 pm-9:38 pm

Nonstop2h 33m

$274

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 3/24

6:45 am-1:58 pm

1 stop7h 13m

Denver Intl

Tue 3/31

10:50 am-8:45 pm

1 stop9h 55m

$287

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 1/26

7:55 am-8:20 pm

1 stop12h 25m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 18 results
1
2

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 December.
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 November 28, 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 $206). 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 December 4, 2025.

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 58% 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 November 29, 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. Saturday at noon 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

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
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 December 4, 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
9,066 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

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
9,066 reviews
United Airlines
7.4
Good
9,066 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

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
3,193 reviews
United Airlines
7.4
Good
9,066 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

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
10,500 reviews
United Airlines
7.4
Good
9,066 reviews

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Entertainment

7.1

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 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 81 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 10h 14m. Fly via Delta to get the fastest option. There are 898 mi between Calgary and Denver.

  • 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 WestJet and United Airlines, starting at $95 and $97 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 (96%), Air Canada (94%), United Airlines( 93%).

  • What are the cheapest flights from Calgary to Denver?

    On average you can expect to pay $846 for a flight from Calgary to Denver. The cheapest flight overall is $136 while the most popular route, (Calgary - Denver Intl) is currently priced at $224.

  • 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 $206). 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
Thornton
Greeley
Lone Tree
Cripple Creek
Silverthorne
Central City
Frisco
Wheat Ridge
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Parker

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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 Aspen 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$100Average$178FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$113Average$279FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$113Average$263FlexibilityNo cancel feeOn-time67%

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