What is the cheapest airline that flies from Calgary to Denver Intl?

United Airlines and Air Canada are the most popular carriers operating from Calgary to Denver Intl

How many flights depart from Calgary to Denver on average per week?

37 flights are operational weekly from Calgary to Denver as of May 2026. The most popular departure day for this route is Wed, with 19% of flights per week taking off on this day.

How many flights depart from Calgary to Denver on average per day?

As of May 2026, there are 5 flights per day flying from Calgary to Denver. The most common time of day flights depart is 1:00p.m., with 53% of flights taking off in the afternoon.

Which airlines fly to Denver?

WestJet, United Airlines and Air Canada are the top three most popular airlines that fly to Denver from Calgary according to our data. WestJet is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Denver. Keep in mind that there are 4 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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?

There are 4 operators available for flights from Calgary Airport to Denver Intl Airport as of May 2026.

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.

C$ 149 Cheap Flights from Calgary to Denver in 2026

1 adult

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 275WestJet

Fri, 29 May - Fri, 5 Jun

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 285WestJet

Sun, 31 May - Tue, 30 Jun

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 288WestJet

Tue, 23 Jun - Thu, 25 Jun

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 292WestJet

Mon, 1 Jun - Fri, 5 Jun

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 294WestJet

Mon, 1 Jun - Wed, 3 Jun

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 295WestJet

Mon, 1 Jun - Thu, 4 Jun

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 304WestJet

Sat, 23 May - Wed, 27 May

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 306WestJet

Sat, 23 May - Wed, 27 May

6:45 a.m. - 3:36 p.m.

YYC

DEN

8h 51m

1 stop

10:48 a.m. - 8:30 p.m.

DEN

YYC

9h 42m

1 stop

C$ 314Delta

Sat, 23 May - Wed, 27 May

8:45 a.m. - 11:20 a.m.

YYC

DEN

2h 35mdirect

12:15 p.m. - 2:45 p.m.

DEN

YYC

2h 30mdirect

C$ 319WestJet

Thu, 25 Jun - Sun, 28 Jun

WestJet flights from Calgary to Denver

Our best WestJet deals on Calgary to Denver flight tickets

WestJet

29 May

YYC8:45 a.m.Calgary

2h 35m

DEN11:20 a.m.Denver Intl

5 Jun

DEN12:15 p.m.Denver Intl

2h 30m

YYC2:45 p.m.Calgary

C$ 274

WestJet

31 May

YYC8:45 a.m.Calgary

2h 35m

DEN11:20 a.m.Denver Intl

30 Jun

DEN12:15 p.m.Denver Intl

2h 30m

YYC2:45 p.m.Calgary

C$ 285

WestJet

23 Jun

YYC8:45 a.m.Calgary

2h 35m

DEN11:20 a.m.Denver Intl

25 Jun

DEN12:15 p.m.Denver Intl

2h 30m

YYC2:45 p.m.Calgary

C$ 288

Delta flights from Calgary to Denver

Our best Delta deals on Calgary to Denver flight tickets

Delta

23 May

YYC6:45 a.m.Calgary

8h 51m

1 stop

DEN3:36 p.m.Denver Intl

27 May

DEN10:48 a.m.Denver Intl

9h 42m

1 stop

YYC8:30 p.m.Calgary

C$ 314

Delta

23 May

YYC12:27 p.m.Calgary

6h 48m

1 stop

DEN7:15 p.m.Denver Intl

27 May

DEN10:48 a.m.Denver Intl

9h 42m

1 stop

YYC8:30 p.m.Calgary

C$ 361

Delta

23 May

YYC12:27 p.m.Calgary

6h 48m

1 stop

DEN7:15 p.m.Denver Intl

27 May

DEN1:20 p.m.Denver Intl

7h 10m

1 stop

YYC8:30 p.m.Calgary

C$ 363

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Fri 29/5

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Fri 5/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 274

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sun 31/5

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Tue 30/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 285

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Tue 23/6

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Thu 25/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 288

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 1/6

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Fri 5/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 292

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 1/6

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Wed 3/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 294

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Mon 1/6

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Thu 4/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 295

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 23/5

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Wed 27/5

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 304

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 23/5

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Wed 27/5

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 306

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Sat 23/5

6:45 a.m.-3:36 p.m.

1 stop8h 51m

Denver Intl

Wed 27/5

10:48 a.m.-8:30 p.m.

1 stop9h 42m

C$ 314

CalgaryDenver

YYC - DEN

YYCDEN

Calgary

Thu 25/6

8:45 a.m.-11:20 a.m.

Nonstop2h 35m

Denver Intl

Sun 28/6

12:15 p.m.-2:45 p.m.

Nonstop2h 30m

C$ 319

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Calgary and Denver?

What is the cheapest month to fly to Denver?

In general, August 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$ 264. If you aren’t able to travel during the month of August, then book flights to Denver from Calgary during July instead. Flights to Denver in July, while not as cheap as those in August, still average around C$ 277.

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$ 652. 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$ 758.

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 afternoon. Flights from Calgary to Denver during this time can be as low as C$ 500. Try not to purchase tickets at noon because they tend to be around C$ 716. 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 from Calgary 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$ 387 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$ 144 on momondo.

Can stopping save me money on Calgary to Denver flights?

No. A direct flight is the cheapest option for a flight between Calgary to Denver.

How have Calgary to Denver flight prices changed over time?

As of May 2026, prices for Calgary to Denver flights are approximately 10% 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$ 290
Fastest flight time	2h 29m
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$ 290. The best round-trip flight deal from Calgary to Denver found on momondo in the last 72 hours is C$ 539.

The fastest flight from Calgary to Denver takes 2h 29m

Direct flights go from Calgary to Denver every day.

There is 1 airport in Denver. From Calgary there are direct flights to Denver Intl (DEN).

Search flight deals

Frequently asked questions about flying from Calgary to Denver

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 29m 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?
There are 4 operators available for flights from Calgary Airport to Denver Intl Airport as of May 2026.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Calgary to Denver is Boeing 737-800 (29.87% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (24.53%), Boeing 737-700 Passenger/BBJ1 (winglets) (11.43%), and Boeing 737-900 (6.60%).
What is the most popular airline from Calgary to Denver?
Based on momondo bookings for flights between Calgary and Denver, the leading airline is WestJet, making up 40% of the total bookings. Other popular airlines include United Airlines with 33%, Air Canada with 23%, and Delta with 3%.

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
Delta	PriceFrom C$ 138	Free Cancellation	Rating 7.9 8,459 reviews	Search Delta flights
WestJet	PriceFrom C$ 164	Free Cancellation	Rating 7.2 3,331 reviews	Search WestJet flights
United Airlines	PriceFrom C$ 179	Free Cancellation	Rating 7.4 9,680 reviews	Search United Airlines flights
Air Canada	PriceFrom C$ 181	Free Cancellation	Rating 7.1 10,995 reviews	Search Air Canada flights

Delta Flights From Calgary to Denver
Delta is one of the most popular airlines flying from Calgary to Denver, operating 3 flights/week on average for this route. A good Delta flight deal for Calgary to Denver starts from C$ 138 round-trip, up to an average price of C$ 327. Our users have rated Delta at 7.9/10.
United Airlines Flights From Calgary to Denver
United Airlines (7.4/10 from 9,680 reviews) operates around 14 flights from Calgary to Denver in any given week. The average United Airlines airfare for this route is around C$ 465, with deals from around C$ 179 rare but found on momondo. Referenced prices are for round-trip Calgary to Denver flight searches in the last 72 hours.

Keystone

Wheat Ridge

Winter Park

Lakewood

Longmont

Silverthorne

Boulder

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

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Cheap flights from Calgary to Denver from C$ 151

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 18/5. 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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How to get the cheapest flight ticket from Calgary to Denver

What is the typical price of a round-trip flight between Calgary and Denver?

What is the cheapest month to fly to Denver?

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

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

What is the cheapest Calgary to Denver Intl flight route?

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

Can stopping save me money on Calgary to Denver flights?

How have Calgary to Denver flight prices changed over time?

What is the cheapest airline that flies from Calgary to Denver Intl?

Which airlines fly to Denver?

How many flights depart from Calgary to Denver on average per day?

How many flights depart from Calgary to Denver on average per week?

When to book flights from Calgary to Denver

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

Fastest flight time

Direct flights

Airports in Denver

Frequently asked questions about flying 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

Delta Flights From Calgary to Denver

United Airlines Flights From Calgary to Denver

Travelling to a place near Denver?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Airports servicing Colorado

Fly your favourite airline to Denver

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Denver. Availability may vary depending on flight origin and airline.

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