What is the cheapest airline that flies from Colorado to Montreal Pierre Elliott Trudeau Intl?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Colorado to Montreal Pierre Elliott Trudeau Intl

What airlines fly to Montreal Pierre Elliott Trudeau Intl Airport?

Air Canada, United Airlines and Delta are the top three most popular airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport from Colorado according to our data. Air Canada is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Montreal Pierre Elliott Trudeau Intl Airport. Keep in mind that there are 5 different airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Montreal Pierre Elliott Trudeau Intl Airport?

Flight times from Colorado to Montreal Pierre Elliott Trudeau Intl Airport vary, but if you’re flying out of Denver and flying into Montreal Pierre Elliott Trudeau Intl Airport (one of the most popular routes), then the duration is 3h 42m on average. Another popular route from Colorado to Montreal Pierre Elliott Trudeau Intl Airport is flying from Colorado Springs to Montreal Pierre Elliott Trudeau Intl Airport, which will take roughly 7h 43m. Keep in mind that layovers or delays could extend your travel time.

How many operators does momondo search for flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport?

As of February 2026, there are 5 operators available to choose from for flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport.

How old do you have to be to fly from Colorado to Montreal Pierre Elliott Trudeau Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Montreal Pierre Elliott Trudeau Intl Airport.

What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

The travel and health documents required for your trip to Montreal Pierre Elliott Trudeau 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 Montreal Pierre Elliott Trudeau Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$139 Cheap Flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport in 2026

Q: How many flights depart from Colorado to Montreal Pierre Elliott Trudeau Intl Airport on average per day?

3 flights are operational daily from Colorado to Montreal Pierre Elliott Trudeau Intl Airport as of February 2026. The most popular departure time for this route is 11:00AM, with 100% of flights per day taking off at noon.

Q: How many flights depart from Colorado to Montreal Pierre Elliott Trudeau Intl Airport on average per week?

The number of flights available between Colorado and Montreal Pierre Elliott Trudeau Intl Airport is 21 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Colorado to Montreal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:21 pm - 12:18 pm

DEN

YUL

19h 57m

1 stop

3:45 pm - 8:26 am

YUL

DEN

18h 41m

1 stop

$336American Airlines

Fri, Apr 17 - Mon, Apr 20

11:47 am - 10:48 pm

DEN

YUL

9h 01m

1 stop

4:16 pm - 10:47 pm

YUL

DEN

8h 31m

1 stop

$338American Airlines

Sat, Apr 4 - Fri, Apr 10

8:00 am - 10:48 pm

DEN

YUL

12h 48m

2 stops

7:29 am - 8:41 pm

YUL

DEN

15h 12m

1 stop

$346American Airlines

Sat, Apr 4 - Fri, Apr 10

5:30 am - 2:44 pm

DEN

YUL

7h 14m

1 stop

12:30 pm - 11:59 pm

YUL

DEN

13h 29m

1 stop

$347American Airlines

Thu, Apr 23 - Wed, Apr 29

11:59 pm - 4:28 pm

DEN

YUL

14h 29m

2 stops

4:35 pm - 10:59 pm

YUL

DEN

32h 24m

1 stop

$376Multiple Airlines

Thu, Apr 23 - Tue, Apr 28

5:30 am - 2:44 pm

DEN

YUL

7h 14m

1 stop

7:45 am - 1:20 pm

YUL

DEN

7h 35m

1 stop

$395British Airways

Sun, Apr 26 - Sat, May 2

6:15 am - 5:15 pm

DEN

YUL

33h 00m

2 stops

8:00 pm - 11:20 am

YUL

DEN

17h 20m

1 stop

$396Multiple Airlines

Sun, May 10 - Sat, May 23

11:43 am - 12:00 pm

COS

YUL

22h 17m

1 stop

4:55 pm - 10:47 am

YUL

COS

19h 52m

1 stop

$524United Airlines

Sat, May 2 - Tue, May 5

12:16 pm - 9:26 pm

COS

YUL

7h 10m

1 stop

6:10 am - 11:10 am

YUL

COS

7h 00m

1 stop

$584United Airlines

Sun, May 24 - Tue, Jun 2

1:32 pm - 1:51 am

COS

YUL

10h 19m

2 stops

5:35 pm - 8:49 am

YUL

COS

17h 14m

1 stop

$619Air Canada

Sat, Mar 28 - Wed, Apr 1

American Airlines flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Our best American Airlines deals on Colorado to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

American Airlines

Apr 17

DEN2:21 pmDenver Intl

19h 57m

1 stop

YUL12:18 pmMontreal Pierre Elliott Trudeau Intl

Apr 20

YUL3:45 pmMontreal Pierre Elliott Trudeau Intl

18h 41m

1 stop

DEN8:26 amDenver Intl

$336

American Airlines

Apr 4

DEN11:47 amDenver Intl

9h 01m

1 stop

YUL10:48 pmMontreal Pierre Elliott Trudeau Intl

Apr 10

YUL4:16 pmMontreal Pierre Elliott Trudeau Intl

8h 31m

1 stop

DEN10:47 pmDenver Intl

$338

American Airlines

Apr 4

DEN8:00 amDenver Intl

12h 48m

2 stops

YUL10:48 pmMontreal Pierre Elliott Trudeau Intl

Apr 10

YUL7:29 amMontreal Pierre Elliott Trudeau Intl

15h 12m

1 stop

DEN8:41 pmDenver Intl

$346

Air Canada flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Our best Air Canada deals on Colorado to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

Air Canada

Apr 6

DEN8:45 amDenver Intl

10h 18m

1 stop

YUL9:03 pmMontreal Pierre Elliott Trudeau Intl

Apr 13

YUL5:35 pmMontreal Pierre Elliott Trudeau Intl

4h 20m

DEN7:55 pmDenver Intl

$424

Air Canada

Mar 3

DEN11:15 amDenver Intl

3h 43m

YUL4:58 pmMontreal Pierre Elliott Trudeau Intl

Mar 10

YUL5:25 pmMontreal Pierre Elliott Trudeau Intl

4h 30m

DEN7:55 pmDenver Intl

$619

Air Canada

Mar 3

DEN11:15 amDenver Intl

3h 43m

YUL4:58 pmMontreal Pierre Elliott Trudeau Intl

Mar 10

YUL7:30 amMontreal Pierre Elliott Trudeau Intl

12h 14m

1 stop

DEN5:44 pmDenver Intl

$624

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Fri 4/17

2:21 pm-12:18 pm

1 stop19h 57m

Montreal Pierre Elliott Trudeau Intl

Mon 4/20

3:45 pm-8:26 am

1 stop18h 41m

$336

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Sat 4/4

11:47 am-10:48 pm

1 stop9h 01m

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

4:16 pm-10:47 pm

1 stop8h 31m

$338

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Sat 4/4

8:00 am-10:48 pm

2 stops12h 48m

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

7:29 am-8:41 pm

1 stop15h 12m

$346

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Thu 4/23

5:30 am-2:44 pm

1 stop7h 14m

Montreal Pierre Elliott Trudeau Intl

Wed 4/29

12:30 pm-11:59 pm

1 stop13h 29m

$347

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Thu 4/23

11:59 pm-4:28 pm

2 stops14h 29m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

4:35 pm-10:59 pm

1 stop32h 24m

$376

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Sun 4/26

5:30 am-2:44 pm

1 stop7h 14m

Montreal Pierre Elliott Trudeau Intl

Sat 5/2

7:45 am-1:20 pm

1 stop7h 35m

$395

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Sun 5/10

6:15 am-5:15 pm

2 stops33h 00m

Montreal Pierre Elliott Trudeau Intl

Sat 5/23

8:00 pm-11:20 am

1 stop17h 20m

$396

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sat 5/2

11:43 am-12:00 pm

1 stop22h 17m

Montreal Pierre Elliott Trudeau Intl

Tue 5/5

4:55 pm-10:47 am

1 stop19h 52m

$524

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sun 5/24

12:16 pm-9:26 pm

1 stop7h 10m

Montreal Pierre Elliott Trudeau Intl

Tue 6/2

6:10 am-11:10 am

1 stop7h 00m

$584

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Sat 3/28

1:32 pm-1:51 am

2 stops10h 19m

Montreal Pierre Elliott Trudeau Intl

Wed 4/1

5:35 pm-8:49 am

1 stop17h 14m

$619

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 Colorado to Montreal Pierre Elliott Trudeau Intl Airport

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 cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport?

The month of May is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from Colorado averaging around $411.

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

The cheapest day to depart from Colorado to Montreal Pierre Elliott Trudeau Intl Airport is on a Tuesday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Tuesday will often find tickets for as low as $696. Flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport on a Saturday will generally be more expensive and average around $847. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

In the afternoon is the cheapest time of day to fly from Colorado to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $604. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $772.

What is the cheapest Colorado to Montreal Pierre Elliott Trudeau Intl flight route?

Fly from Denver Intl to Montreal Pierre Elliott Trudeau Intl for the best Colorado - Montreal Pierre Elliott Trudeau Intl flight prices

How far in advance should I book a flight to Montreal Pierre Elliott Trudeau Intl Airport?

You are more likely to see cheaper flights to Montreal Pierre Elliott Trudeau Intl Airport from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal Pierre Elliott Trudeau Intl Airport for around $517 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal Pierre Elliott Trudeau Intl Airport from Colorado for as low as $309 on momondo.

What cabin class options are available on Colorado to Montreal Pierre Elliott Trudeau Intl flights?

There are 3 cabin classes available to choose from on Colorado to Montreal Pierre Elliott Trudeau Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Colorado to Montreal Pierre Elliott Trudeau Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Best Price Found	$352
Fastest flight time	3h 42m
Direct flights	Every day

The best one-way flight to Montreal Pierre Elliott Trudeau Intl Airport from Colorado in the past 72 hours is $352. The best round-trip flight deal from Colorado to Montreal Pierre Elliott Trudeau Intl Airport found on momondo in the last 72 hours is $626.

The fastest flight from Colorado to Montreal Pierre Elliott Trudeau Intl Airport takes 3h 42m

Direct flights go from Colorado to Montreal Pierre Elliott Trudeau Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport?
Prices for flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport were last updated today.
How many operators does momondo search for flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport?
As of February 2026, there are 5 operators available to choose from for flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport.
How old do you have to be to fly from Colorado to Montreal Pierre Elliott Trudeau Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Colorado to Montreal Pierre Elliott Trudeau Intl Airport.
What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?
The travel and health documents required for your trip to Montreal Pierre Elliott Trudeau 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 Montreal Pierre Elliott Trudeau 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 Colorado to Montreal Pierre Elliott Trudeau Intl Airport?
Based on momondo bookings for flights between Colorado and Montreal Pierre Elliott Trudeau Intl Airport, the leading plane model is Airbus A220-300, making up 39.93% of the total bookings. Other popular models include Boeing 787 Dreamliner with 13.55%, Boeing 787-9 Dreamliner with 12.82%, and Airbus A330-200 with 10.62%.

Best airlines flying from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Compare and see reviews for airlines that fly from Colorado to Montreal Pierre Elliott Trudeau Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $109	Free Cancellation	Rating 7.2 3,273 reviews	Search WestJet flights
Air Canada	PriceFrom $177	Free Cancellation	Rating 7.1 10,739 reviews	Search Air Canada flights
Delta	PriceFrom $206	Free Cancellation	Rating 7.9 8,236 reviews	Search Delta flights
United Airlines	PriceFrom $259	Free Cancellation	Rating 7.4 9,342 reviews	Search United Airlines flights
American Airlines	PriceFrom $485	Free Cancellation	Rating 7.2 11,339 reviews	Search American Airlines flights

Laval

Dorval

Brossard

Longueuil

Trois-Rivières

Cornwall

Magog

Boucherville

Sherbrooke

Drummondville

Montebello

Saint-Jean-sur-Richelieu

Bromont

Saint-Sauveur

North Hatley

Sutton

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Montreal?

Finding the right flight to Montreal from Colorado is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Montreal quick and easy, saving you time and money.

Can I find flights from Colorado to Montreal with flexible booking policies on momondo?

All flight searches from Colorado to Montreal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Colorado to Montreal?

Once all potential Colorado to Montreal 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 Colorado to Montreal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado to Montreal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Montreal Pierre Elliott Trudeau Intl Airport 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 3/25

Wed 4/1

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Montreal

Popular cities

Other flights from Colorado

Other flights to Montreal

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Canada

Flights to Toronto Pearson Intl Airportfrom $121

Flights to Toronto Island Airportfrom $147

Flights to Vancouver Intl Airport

Flights to Toronto Region of Waterloo Intl Airportfrom $296

Cheap flights from Colorado to Montreal from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Montreal departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Colorado to Montreal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Our best American Airlines deals on Colorado to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

Air Canada flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Our best Air Canada deals on Colorado to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

See travel insights to Montreal from

How to get the cheapest flight ticket from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport?

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

What is the cheapest time of day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

What is the cheapest Colorado to Montreal Pierre Elliott Trudeau Intl flight route?

How far in advance should I book a flight to Montreal Pierre Elliott Trudeau Intl Airport?

What cabin class options are available on Colorado to Montreal Pierre Elliott Trudeau Intl flights?

What is the cheapest airline that flies from Colorado to Montreal Pierre Elliott Trudeau Intl?

What airlines fly to Montreal Pierre Elliott Trudeau Intl Airport?

How many flights depart from Colorado to Montreal Pierre Elliott Trudeau Intl Airport on average per day?

How many flights depart from Colorado to Montreal Pierre Elliott Trudeau Intl Airport on average per week?

How long does it take to fly to Montreal Pierre Elliott Trudeau Intl Airport?

Cheap Colorado to Montreal Pierre Elliott Trudeau Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Best Price Found

Fastest flight time

Direct flights

Best airlines flying from Colorado to Montreal Pierre Elliott Trudeau Intl Airport

Compare and see reviews for airlines that fly from Colorado to Montreal Pierre Elliott Trudeau Intl Airport with momondo

Traveling to a place near Montreal?

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Montreal?

Can I find flights from Colorado to Montreal with flexible booking policies on momondo?

How can momondo help me find flights from Colorado to Montreal?

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

An easier way to manage your Montreal Pierre Elliott Trudeau Intl Airport 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.

Find better results for your trip to Montreal

Popular cities in Canada

Popular flights according to clicks in the last 7 days on momondo

Colorado flight routes

According to popular flight searches on momondo this year

Montreal Pierre Elliott Trudeau Intl Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Montreal

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

Cabin classes currently available on flights to Montreal

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

Complete your trip to Montreal

Explore popular destinations other users love

According to popular flight searches on momondo this year