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Cheap flights from Calgary to Denver from C$ 140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Calgary to Denver departing on 17/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Calgary to Denver

Cheap round-trip flights

United Airlines Logo
6:15 a.m. - 8:42 a.m.YYC-DEN
2h 27mdirect
United Airlines Logo
7:21 p.m. - 9:48 p.m.DEN-YYC
2h 27mdirect
C$ 199United Airlines
Find Deal
Sat, 11 Oct - Sun, 12 Oct
Air Canada Logo
7:00 a.m. - 12:38 p.m.YYC-DEN
5h 38m1 stop
Air Canada Logo
6:05 p.m. - 12:42 a.m.DEN-YYC
6h 37m1 stop
C$ 203Air Canada
Find Deal
Wed, 1 Oct - Fri, 3 Oct
Air Canada Logo
8:25 a.m. - 4:33 p.m.YYC-DEN
8h 08m1 stop
Air Canada Logo
6:05 p.m. - 12:42 a.m.DEN-YYC
6h 37m1 stop
C$ 216Air Canada
Find Deal
Tue, 30 Sep - Mon, 6 Oct
Lufthansa Logo
6:15 a.m. - 8:42 a.m.YYC-DEN
2h 27mdirect
Lufthansa Logo
7:21 p.m. - 9:48 p.m.DEN-YYC
2h 27mdirect
C$ 220Lufthansa
Find Deal
Sat, 11 Oct - Sun, 12 Oct
Air Canada Logo
6:10 a.m. - 12:38 p.m.YYC-DEN
6h 28m1 stop
Air Canada Logo
6:05 p.m. - 12:42 a.m.DEN-YYC
6h 37m1 stop
C$ 232Air Canada
Find Deal
Wed, 15 Oct - Sun, 19 Oct
Air Canada Logo
6:10 a.m. - 12:38 p.m.YYC-DEN
6h 28m1 stop
Air Canada Logo
6:05 p.m. - 12:42 a.m.DEN-YYC
6h 37m1 stop
C$ 242Air Canada
Find Deal
Wed, 15 Oct - Mon, 20 Oct
Air Canada Logo
6:10 a.m. - 12:38 p.m.YYC-DEN
6h 28m1 stop
Air Canada Logo
8:40 a.m. - 3:22 p.m.DEN-YYC
6h 42m1 stop
C$ 243Air Canada
Find Deal
Thu, 2 Oct - Tue, 21 Oct
United Airlines Logo
6:10 a.m. - 8:53 a.m.YYC-DEN
2h 43mdirect
United Airlines Logo
7:15 p.m. - 9:53 p.m.DEN-YYC
2h 38mdirect
C$ 245United Airlines
Find Deal
Thu, 18 Dec - Mon, 29 Dec
Delta Logo
7:45 a.m. - 2:46 p.m.YYC-DEN
7h 01m1 stop
Delta Logo
6:23 p.m. - 11:02 p.m.DEN-YYC
4h 39m1 stop
C$ 297Delta
Find Deal
Wed, 22 Oct - Fri, 31 Oct
Delta Logo
6:45 a.m. - 3:42 p.m.YYC-DEN
8h 57m1 stop
Delta Logo
6:23 p.m. - 11:02 p.m.DEN-YYC
4h 39m1 stop
C$ 308Delta
Find Deal
Tue, 4 Nov - Sat, 8 Nov

United Airlines flights from Calgary to Denver

Our best United Airlines deals on Calgary to Denver flight tickets
United Airlines
11 Oct
YYC6:15 a.m.Calgary
2h 27m
DEN8:42 a.m.Denver Intl
12 Oct
DEN7:21 p.m.Denver Intl
2h 27m
YYC9:48 p.m.Calgary
C$ 199
Find similar
United Airlines
18 Dec
YYC6:10 a.m.Calgary
2h 43m
DEN8:53 a.m.Denver Intl
29 Dec
DEN7:15 p.m.Denver Intl
2h 38m
YYC9:53 p.m.Calgary
C$ 245
Find similar
United Airlines
29 Oct
YYC6:15 a.m.Calgary
2h 38m
DEN8:53 a.m.Denver Intl
5 Nov
DEN11:44 a.m.Denver Intl
2h 37m
YYC2:21 p.m.Calgary
C$ 258
Find similar

Air Canada flights from Calgary to Denver

Our best Air Canada deals on Calgary to Denver flight tickets
Air Canada
1 Oct
YYC7:00 a.m.Calgary
5h 38m
1 stop
DEN12:38 p.m.Denver Intl
3 Oct
DEN6:05 p.m.Denver Intl
6h 37m
1 stop
YYC12:42 a.m.Calgary
C$ 203
Find similar
Air Canada
30 Sep
YYC8:25 a.m.Calgary
8h 08m
1 stop
DEN4:33 p.m.Denver Intl
6 Oct
DEN6:05 p.m.Denver Intl
6h 37m
1 stop
YYC12:42 a.m.Calgary
C$ 216
Find similar
Air Canada
15 Oct
YYC6:10 a.m.Calgary
6h 28m
1 stop
DEN12:38 p.m.Denver Intl
19 Oct
DEN6:05 p.m.Denver Intl
6h 37m
1 stop
YYC12:42 a.m.Calgary
C$ 232
Find similar

momondo 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, momondo users made 96,600 searches. Data last updated 16 September 2025.
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

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 11/10

6:15 a.m.-8:42 a.m.

Nonstop2h 27m

Denver Intl

Sun 12/10

7:21 p.m.-9:48 p.m.

Nonstop2h 27m

C$ 199

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 1/10

7:00 a.m.-12:38 p.m.

1 stop5h 38m

Denver Intl

Fri 3/10

6:05 p.m.-12:42 a.m.

1 stop6h 37m

C$ 203

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 30/9

8:25 a.m.-4:33 p.m.

1 stop8h 08m

Denver Intl

Mon 6/10

6:05 p.m.-12:42 a.m.

1 stop6h 37m

C$ 216

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 11/10

6:15 a.m.-8:42 a.m.

Nonstop2h 27m

Denver Intl

Sun 12/10

7:21 p.m.-9:48 p.m.

Nonstop2h 27m

C$ 220

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 15/10

6:10 a.m.-12:38 p.m.

1 stop6h 28m

Denver Intl

Sun 19/10

6:05 p.m.-12:42 a.m.

1 stop6h 37m

C$ 232

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 15/10

6:10 a.m.-12:38 p.m.

1 stop6h 28m

Denver Intl

Mon 20/10

6:05 p.m.-12:42 a.m.

1 stop6h 37m

C$ 242

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 2/10

6:10 a.m.-12:38 p.m.

1 stop6h 28m

Denver Intl

Tue 21/10

8:40 a.m.-3:22 p.m.

1 stop6h 42m

C$ 243

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 18/12

6:10 a.m.-8:53 a.m.

Nonstop2h 43m

Denver Intl

Mon 29/12

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

Nonstop2h 38m

C$ 245

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Wed 22/10

7:45 a.m.-2:46 p.m.

1 stop7h 01m

Denver Intl

Fri 31/10

6:23 p.m.-11:02 p.m.

1 stop4h 39m

C$ 297

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 4/11

6:45 a.m.-3:42 p.m.

1 stop8h 57m

Denver Intl

Sat 8/11

6:23 p.m.-11:02 p.m.

1 stop4h 39m

C$ 308

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Calgary to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

In general, July is the cheapest month to fly from Calgary to Denver. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 254. If you aren’t able to travel during the month of July, then book flights to Denver from Calgary during June instead. Flights to Denver in June, while not as cheap as those in July, still average around C$ 267.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart from Calgary to Denver is on a Tuesday. Travellers who choose to depart for Denver on a Tuesday will often find tickets for as low as C$ 728. On the other hand, Sunday is the most expensive day to depart from Calgary because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 795.

What is the cheapest time of day to depart on your flight to Denver?

Our most recent data shows that the best time of day to fly to Denver is in the evening. Flights from Calgary to Denver during this time can be as low as C$ 653. Try not to purchase tickets in the morning because they tend to be around C$ 770. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Calgary to Denver Intl flight route?

Fly from Calgary to Denver Intl for the best Calgary - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Calgary when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around C$ 372 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Calgary for as low as C$ 216 on momondo.

What cabin class options are available on Calgary to Denver Intl flights?

There are 4 cabin classes available to choose from on Calgary to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Calgary to Denver flight prices changed over time?

As of September 2025, prices for Calgary to Denver flights are approximately 19% cheaper when compared to flights at the same time last year.

When to book flights from Calgary to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Calgary to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Calgary to Denver (YYC to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Calgary to Denver

Best price found

C$ 317

Fastest flight time

2h 27m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Calgary in the past 72 hours is C$ 317. The best round-trip flight deal from Calgary to Denver found on momondo in the last 72 hours is C$ 485.
The fastest flight from Calgary to Denver takes 2h 27m
Direct flights go from Calgary to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)
Search flight deals

  • How far is Calgary to Denver Intl by plane?

    The distance between Calgary and Denver Intl is about 1440.3 km. Typically, this will take 2h 27m by plane in normal conditions.

  • When did momondo last update prices for flights from Calgary Airport to Denver Intl Airport?

    Prices for flights from Calgary Airport to Denver Intl Airport refresh daily.

  • How many operators does momondo search for flights from Calgary Airport to Denver Intl Airport?

  • How old do you have to be to fly from Calgary Airport to Denver Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Calgary Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Calgary to Denver?

  • What is the most popular airline from Calgary to Denver?

Best airlines flying from Calgary to Denver

Compare and see reviews for airlines that fly from Calgary to Denver with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 168Free CancellationRating
7.2
3,093 reviews
Search WestJet flights
Air CanadaPriceFrom C$ 184Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 200Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
DeltaPriceFrom C$ 212Free CancellationRating
7.9
7,957 reviews
Search Delta flights

  • Delta Flights From Calgary to Denver

    Delta is one of the most popular airlines flying from Calgary to Denver, operating 2 flights/week on average for this route. A good Delta flight deal for Calgary to Denver starts from C$ 154 round-trip, up to an average price of C$ 283. Our users have rated Delta at 7.9/10.

  • United Airlines Flights From Calgary to Denver

    United Airlines (7.4/10 from 8,924 reviews) operates around 17 flights from Calgary to Denver in any given week. The average United Airlines airfare for this route is around C$ 322, with deals from around C$ 145 rare but found on momondo. Referenced prices are for round-trip Calgary to Denver flight searches in the last 72 hours.

Travelling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Silverthorne
Wheat Ridge
Winter Park
Lakewood
Longmont
Boulder
Fort Collins
Littleton
Englewood

Why use momondo?

Why should I use momondo to find a flight deal from Calgary to Denver?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Calgary to Denver. momondo saves you time and could save you money on your trip.

Can I find flights from Calgary to Denver with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Denver from Calgary with this policy.

How can momondo help me find flights from Calgary to Denver?

Once all potential Calgary to Denver flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Calgary to Denver right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Calgary to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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