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Cheap flights from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Montreal departing on 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Porter Airlines Logo
11:40 am - 4:30 pm
IAD
-
YUL
4h 50m
1 stop
Porter Airlines Logo
10:35 am - 3:21 pm
YUL
-
IAD
4h 46m
1 stop
$245Porter Airlines
tir., apr. 28 - søn., maj 3
Porter Airlines Logo
4:05 pm - 10:10 pm
IAD
-
YUL
6h 05m
1 stop
Porter Airlines Logo
10:35 am - 3:21 pm
YUL
-
IAD
4h 46m
1 stop
$253Porter Airlines
man., maj 4 - man., maj 11
Porter Airlines Logo
11:30 am - 5:15 pm
IAD
-
YUL
5h 45m
1 stop
Porter Airlines Logo
6:30 am - 10:46 am
YUL
-
IAD
4h 16m
1 stop
$254Porter Airlines
tor., maj 28 - tir., juni 2
Porter Airlines Logo
11:40 am - 5:45 pm
IAD
-
YUL
6h 05m
1 stop
Porter Airlines Logo
6:30 am - 10:46 am
YUL
-
IAD
4h 16m
1 stop
$255Porter Airlines
man., apr. 27 - fre., maj 1
Porter Airlines Logo
11:40 am - 4:30 pm
IAD
-
YUL
4h 50m
1 stop
Porter Airlines Logo
10:35 am - 3:21 pm
YUL
-
IAD
4h 46m
1 stop
$256Porter Airlines
tor., apr. 30 - søn., maj 3
Porter Airlines Logo
11:30 am - 5:15 pm
IAD
-
YUL
5h 45m
1 stop
Porter Airlines Logo
6:30 am - 10:46 am
YUL
-
IAD
4h 16m
1 stop
$257Porter Airlines
fre., maj 29 - man., juni 1
Porter Airlines Logo
11:40 am - 4:30 pm
IAD
-
YUL
4h 50m
1 stop
Porter Airlines Logo
10:35 am - 3:21 pm
YUL
-
IAD
4h 46m
1 stop
$258Porter Airlines
tor., apr. 30 - søn., maj 3
Porter Airlines Logo
11:40 am - 4:30 pm
IAD
-
YUL
4h 50m
1 stop
Porter Airlines Logo
6:50 am - 10:54 am
YUL
-
IAD
4h 04m
1 stop
$261Porter Airlines
ons., apr. 22 - tor., apr. 23
Porter Airlines Logo
11:30 am - 5:15 pm
IAD
-
YUL
5h 45m
1 stop
Porter Airlines Logo
6:30 am - 10:46 am
YUL
-
IAD
4h 16m
1 stop
$263Porter Airlines
fre., maj 1 - tir., maj 5
Porter Airlines Logo
11:40 am - 5:45 pm
IAD
-
YUL
6h 05m
1 stop
Porter Airlines Logo
10:35 am - 3:21 pm
YUL
-
IAD
4h 46m
1 stop
$264Porter Airlines
man., apr. 27 - søn., maj 3

Porter Airlines flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

Our best Porter Airlines deals on Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
Porter Airlines
Apr 28
IAD11:40 amWashington, D.C. Dulles Intl
4h 50m
1 stop
YUL4:30 pmMontreal Pierre Elliott Trudeau Intl
May 3
YUL10:35 amMontreal Pierre Elliott Trudeau Intl
4h 46m
1 stop
IAD3:21 pmWashington, D.C. Dulles Intl
$245
Porter Airlines
May 4
IAD4:05 pmWashington, D.C. Dulles Intl
6h 05m
1 stop
YUL10:10 pmMontreal Pierre Elliott Trudeau Intl
May 11
YUL10:35 amMontreal Pierre Elliott Trudeau Intl
4h 46m
1 stop
IAD3:21 pmWashington, D.C. Dulles Intl
$253
Porter Airlines
May 28
IAD11:30 amWashington, D.C. Dulles Intl
5h 45m
1 stop
YUL5:15 pmMontreal Pierre Elliott Trudeau Intl
Jun 2
YUL6:30 amMontreal Pierre Elliott Trudeau Intl
4h 16m
1 stop
IAD10:46 amWashington, D.C. Dulles Intl
$254

United Airlines flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flight tickets
United Airlines
Apr 1
IAD10:08 pmWashington, D.C. Dulles Intl
2h 05m
YUL12:13 amMontreal Pierre Elliott Trudeau Intl
Apr 8
YUL6:35 pmMontreal Pierre Elliott Trudeau Intl
2h 02m
IAD8:37 pmWashington, D.C. Dulles Intl
$329
United Airlines
Apr 2
IAD10:08 pmWashington, D.C. Dulles Intl
2h 05m
YUL12:13 amMontreal Pierre Elliott Trudeau Intl
Apr 9
YUL6:35 pmMontreal Pierre Elliott Trudeau Intl
2h 02m
IAD8:37 pmWashington, D.C. Dulles Intl
$343
United Airlines
Apr 1
IAD10:08 pmWashington, D.C. Dulles Intl
2h 05m
YUL12:13 amMontreal Pierre Elliott Trudeau Intl
Apr 8
YUL9:45 amMontreal Pierre Elliott Trudeau Intl
6h 18m
1 stop
IAD4:03 pmWashington, D.C. Dulles Intl
$345

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport 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 832,500 searches. Data last updated marts 21, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

tir. 4/28

11:40 am-4:30 pm

1 stop4h 50m

Montreal Pierre Elliott Trudeau Intl

søn. 5/3

10:35 am-3:21 pm

1 stop4h 46m

$245

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

man. 5/4

4:05 pm-10:10 pm

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

man. 5/11

10:35 am-3:21 pm

1 stop4h 46m

$253

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

tor. 5/28

11:30 am-5:15 pm

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

tir. 6/2

6:30 am-10:46 am

1 stop4h 16m

$254

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

man. 4/27

11:40 am-5:45 pm

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

fre. 5/1

6:30 am-10:46 am

1 stop4h 16m

$255

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

tor. 4/30

11:40 am-4:30 pm

1 stop4h 50m

Montreal Pierre Elliott Trudeau Intl

søn. 5/3

10:35 am-3:21 pm

1 stop4h 46m

$256

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

fre. 5/29

11:30 am-5:15 pm

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

man. 6/1

6:30 am-10:46 am

1 stop4h 16m

$257

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

tor. 4/30

11:40 am-4:30 pm

1 stop4h 50m

Montreal Pierre Elliott Trudeau Intl

søn. 5/3

10:35 am-3:21 pm

1 stop4h 46m

$258
Quickest round-trip

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

ons. 4/22

11:40 am-4:30 pm

1 stop4h 50m

Montreal Pierre Elliott Trudeau Intl

tor. 4/23

6:50 am-10:54 am

1 stop4h 04m

$261

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

fre. 5/1

11:30 am-5:15 pm

1 stop5h 45m

Montreal Pierre Elliott Trudeau Intl

tir. 5/5

6:30 am-10:46 am

1 stop4h 16m

$263

Washington, D.C.Montreal

IAD - YUL

IADYUL

Washington, D.C. Dulles Intl

man. 4/27

11:40 am-5:45 pm

1 stop6h 05m

Montreal Pierre Elliott Trudeau Intl

søn. 5/3

10:35 am-3:21 pm

1 stop4h 46m

$264

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 Montreal from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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

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

The month of June is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $313.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport is on a Friday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Friday will often find tickets for as low as $565. Flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport on a Monday will generally be more expensive and average around $682. 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 morning is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $564. Flying to Montreal Pierre Elliott Trudeau Intl Airport in the morning is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $661.

What is the cheapest Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl flight route?

Fly from Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl for the best Washington, D.C. Dulles Intl - 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 Washington, D.C. Dulles Intl Airport 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 $356 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 Washington, D.C. Dulles Intl Airport for as low as $296 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl 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.

How have Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flight prices changed over time?

As of March 2026, prices for Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights are approximately 74% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (IAD to YUL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

Best Price Found

$247

Fastest flight time

1h 42m

Direct flights

Every day
The best one-way flight to Montreal Pierre Elliott Trudeau Intl Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $247. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport found on momondo in the last 72 hours is $477.
The fastest flight from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport takes 1h 42m
Direct flights go from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport every day.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Montreal Pierre Elliott Trudeau Intl by plane?

    There are 487.7 mi between Washington, D.C. Dulles Intl and Montreal Pierre Elliott Trudeau Intl. By plane, this route typically takes 1h 42m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $117Free CancellationRating
7.1
10,821 reviews
Search Air Canada flights
Porter AirlinesPriceFrom $148Free CancellationRating
8.0
425 reviews
Search Porter Airlines flights
United AirlinesPriceFrom $244Free CancellationRating
7.4
9,451 reviews
Search United Airlines flights

  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

    United Airlines is one of the most popular airlines flying from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport, operating 21 flights/week on average for this route. A good United Airlines flight deal for Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport starts from $244 round-trip, up to an average price of $403. Our users have rated United Airlines at 7.4/10.

  • Air Canada Flights From Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

    Another popular option for Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport flights is Air Canada (7.1/10, 10,821 ratings). Air Canada flies from Washington, D.C. Dulles Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport around 21 times per week, with deals starting from $117 round-trip and rising to an average price of around $360.

Traveling to a place near Montreal?

Book flights to Montreal if you plan to visit one of these locations
Laval
Dorval
Brossard
Longueuil
Trois-Rivières
Cornwall
Magog
Sherbrooke
Saint-Sauveur
Boucherville
Drummondville
Montebello
Saint-Jean-sur-Richelieu
Bromont
North Hatley
Sutton

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Montreal?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Montreal. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Montreal with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Montreal on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Montreal?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Montreal from Washington, D.C..

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

If you are simply researching potential flights to Montreal, momondo offers a useful price alert feature which will track prices for flights to Montreal from Washington, D.C. and alert you when they change.

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