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Cheap flights from Calgary to Denver from C$ 144

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEN
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

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 Thursday or Tuesday and return on a Thursday

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 29 October 2025.

Round-trip from

C$ 261

One-way from

C$ 144

Popular in

January

Cheapest in

July

Average price

C$ 349

Good round-trip deal

C$ 526 or less

Good one-way deal

C$ 320 or less
Air Canada
  • Air Canada
  • 11/11-20/5
  • 2 total stops
  • 12h 19m total
  • Calgary to Denver
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United Airlines
  • United Airlines
  • 12/11
  • Nonstop
  • 2h 32m total
  • Calgary to Denver
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Highest demand for flights based on searches. 25% potential increase in price (C$ 180 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 27 potential savings vs. average RT price).
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Average for round-trip flights in October 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

Enter your travel dates to find the best prices.

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 29 October 2025.

Tue 11/116:00 a.m.YYC - DEN
1 stop6h 37mAir Canada
Wed 20/56:55 p.m.DEN - YYC
1 stop5h 42mAir Canada
Deal found 29/10C$ 261
Tue 4/118:25 a.m.YYC - DEN
2 stops9h 19mAir Canada
Tue 11/118:45 a.m.DEN - YYC
1 stop15h 44mAir Canada
Deal found 28/10C$ 268
Sat 15/112:13 p.m.YYC - DEN
Nonstop2h 32mMultiple Airlines
Wed 19/118:45 a.m.DEN - YYC
1 stop10h 59mMultiple Airlines
Deal found 27/10C$ 281
Tue 11/116:45 a.m.YYC - DEN
1 stop5h 52mAir Canada
Tue 19/58:15 a.m.DEN - YYC
1 stop14h 23mAir Canada
Deal found 29/10C$ 288
Tue 11/116:45 a.m.YYC - DEN
1 stop5h 52mAir Canada
Sun 16/118:45 a.m.DEN - YYC
1 stop15h 44mAir Canada
Deal found 27/10C$ 307
Thu 11/122:13 p.m.YYC - DEN
Nonstop2h 32mUnited Airlines
Sun 14/127:16 p.m.DEN - YYC
Nonstop2h 37mUnited Airlines
Deal found 28/10C$ 313
Thu 11/122:45 p.m.YYC - DEN
1 stop8h 32mDelta
Sun 14/126:22 p.m.DEN - YYC
1 stop4h 51mDelta
Deal found 29/10C$ 319
Mon 10/1112:30 a.m.YYC - DEN
1 stop13h 15mMultiple Airlines
Thu 21/512:15 p.m.DEN - YYC
Nonstop2h 30mMultiple Airlines
Deal found 29/10C$ 321
Thu 11/128:25 a.m.YYC - DEN
2 stops9h 19mAir Canada
Sun 14/128:45 a.m.DEN - YYC
1 stop13h 59mAir Canada
Deal found 28/10C$ 323

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 629,999 searches. Data last updated 29 October 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 23/1

2:13 p.m.-4:45 p.m.

Nonstop2h 32m

Denver Intl

Sun 25/1

7:15 p.m.-9:53 p.m.

Nonstop2h 38m

C$ 272

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 24/1

2:13 p.m.-4:45 p.m.

Nonstop2h 32m

Denver Intl

Sun 25/1

7:15 p.m.-9:53 p.m.

Nonstop2h 38m

C$ 272

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 15/11

2:13 p.m.-4:45 p.m.

Nonstop2h 32m

Denver Intl

Wed 19/11

8:45 a.m.-7:44 p.m.

1 stop10h 59m

C$ 281

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 23/1

2:13 p.m.-4:45 p.m.

Nonstop2h 32m

Denver Intl

Sun 25/1

8:05 a.m.-8:59 p.m.

1 stop12h 54m

C$ 306

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 11/11

6:45 a.m.-12:37 p.m.

1 stop5h 52m

Denver Intl

Sun 16/11

8:45 a.m.-12:29 a.m.

1 stop15h 44m

C$ 307

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 25/11

2:13 p.m.-4:45 p.m.

Nonstop2h 32m

Denver Intl

Tue 2/12

7:16 p.m.-9:53 p.m.

Nonstop2h 37m

C$ 312

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 21/11

6:35 a.m.-3:39 p.m.

1 stop9h 04m

Denver Intl

Mon 24/11

7:05 a.m.-11:51 a.m.

1 stop4h 46m

C$ 319

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 28/11

12:41 p.m.-10:28 p.m.

1 stop9h 47m

Denver Intl

Thu 4/12

11:12 a.m.-8:57 p.m.

1 stop9h 45m

C$ 319

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 5/12

2:45 p.m.-11:17 p.m.

1 stop8h 32m

Denver Intl

Mon 8/12

5:45 a.m.-1:40 p.m.

1 stop7h 55m

C$ 319

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 11/12

2:45 p.m.-11:17 p.m.

1 stop8h 32m

Denver Intl

Sun 14/12

6:22 p.m.-11:13 p.m.

1 stop4h 51m

C$ 319

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/10

Showing 1-10 of 23 results
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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 24 October 2025.

The price you pay for your flight from Calgary to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 140). Flying from Calgary to Denver in January is currently the most expensive (average of C$ 293). 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 29 October 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 evening could potentially save you up to 11% 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 26 October 2025.

Travelers seeking maximum savings on their Calgary to Denver flight should consider departing on Sunday 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.

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 29 October 2025.
Get a feel of what it's like to fly with Delta,United Airlines, andWestJet from Calgary to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews
Check prices

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews
Check prices

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews
Check prices

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
WestJet
7.2
Good
3,148 reviews
Delta
7.9
Good
7,994 reviews
Check prices

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!
Air Canada
7.1
Good
10,371 reviews
Delta
7.9
Good
7,994 reviews
Check prices

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Mary,Oct 2025

AMS - PDX

It's specail being able to fly non-stop from Amsterdam all the way home to Portland, Oregon!

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?

    Booking a flight from Calgary (YYC) to Denver Intl (DEN) is your only option if you wish to fly from Calgary to Denver. On a typical day, there are 3 flights from Calgary to Denver Intl, all of which are around 2h 32m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Calgary to Denver.

  • How popular is this Calgary to Denver flight route?

    This flight path from Calgary to Denver Intl was viewed by 3,588 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • 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 United Airlines or Air Canada to get the fastest option. There are 1445 km between Calgary and Denver. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at C$ 170, WestJet will fly you from Calgary to Denver and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Air Canada - these airlines can fly you to your destination from C$ 184 and C$ 185, respectively. Users have found that WestJet is 54% cheaper than the other options available to this destination.

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

    No one likes to see their flight delayed. When booking a flight from Calgary to Denver consider choosing Aeromexico (85%), United Airlines (83%) or Air Canada (80%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Calgary to Denver?

    Looking for the cheapest flight from Calgary to Denver? While on average our users pay C$ 1,492, our data indicates the cheapest price to be C$ 186. The most popular route (Calgary - Denver Intl), is priced around C$ 272.

  • 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 C$ 140). Flying from Calgary to Denver in January is currently the most expensive (average of C$ 293). 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

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Golden
Westminster
Thornton

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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 4 airlines flying from Calgary to Denver

Discover the top 4 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 629,999 searches. Data last updated 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapestC$ 170AverageC$ 284FlexibilityNo cancel feeOn-time60%
Search WestJet flights
DeltaCheapestC$ 184AverageC$ 386FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 185AverageC$ 422FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 192AverageC$ 438FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Calgary to Denver?

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Why should you use Cheapflights to find cheap flight tickets from Calgary to Denver?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Denver from Calgary.

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Yes! Cheapflights helps users easily find flights from Calgary to Denver with no change fees.

Can Cheapflights notify me if prices for flights from Calgary to Denver become cheaper?

Of course! You can now track prices for flights from Calgary to Denver and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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