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Cheap flights from Washington to Montreal Pierre Elliott Trudeau Intl Airport from C$ 255

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 18/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
14 Jul — 21 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Pierre Elliott Trudeau Intl

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Washington to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 June 2026.

Sat 5/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
Multiple Airlines
Sat 12/91:10 p.m.
YUL
-
SEA
2 stops10h 54m
Multiple Airlines
Deal found 12/6C$ 543
Sun 27/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 12/106:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/6C$ 561
Sat 29/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 7/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 10/6C$ 562
Fri 3/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Thu 9/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 10/6C$ 564
Mon 13/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
Multiple Airlines
Tue 21/710:40 a.m.
YUL
-
SEA
2 stops13h 27m
Multiple Airlines
Deal found 10/6C$ 566
Mon 13/73:00 p.m.
SEA
-
YUL
2 stops13h 10m
Air Canada
Tue 21/710:40 a.m.
YUL
-
SEA
2 stops13h 27m
Air Canada
Deal found 10/6C$ 568
Mon 24/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 8/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/6C$ 571
Sun 13/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Fri 18/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 12/6C$ 572
Wed 8/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 14/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 12/6C$ 573
Wed 30/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 12/106:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/6C$ 575
Sun 27/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Wed 7/106:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/6C$ 576
Sat 22/82:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Sat 29/87:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Deal found 10/6C$ 587

Find flight deals from Washington to Pierre Elliott Trudeau Intl

Keep the following information in mind while searching for Washington to Pierre Elliott Trudeau Intl flight deals. Data was last updated 14 June 2026.

Round-trip from

C$ 543

One-way from

C$ 255

Popular in

December

Cheapest in

March

Average price

C$ 990
Air Canada
  • Air Canada
  • 5/9-12/9
  • 3 total stops
  • 19h 24m total
  • Washington to Montreal
Search Deals
WestJet
  • WestJet
  • 18/7
  • 1 total stop
  • 8h 30m total
  • Washington to Montreal
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (C$ 101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Pierre Elliott Trudeau Intl 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 14 June 2026.
Use the filters below to find and compare flights from Washington to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Tue 7/7

11:40 p.m.-10:40 a.m.

1 stop8h 00m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

7:30 a.m.-2:51 p.m.

1 stop10h 21m

C$ 627

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Thu 13/8

3:43 p.m.-8:16 a.m.

1 stop13h 33m

Montreal Pierre Elliott Trudeau Intl

Fri 21/8

4:55 p.m.-10:52 p.m.

1 stop8h 57m

C$ 641

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Sat 15/8

3:43 p.m.-8:16 a.m.

1 stop13h 33m

Montreal Pierre Elliott Trudeau Intl

Tue 18/8

9:45 a.m.-10:52 p.m.

1 stop16h 07m

C$ 641

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Thu 27/8

1:03 p.m.-8:16 a.m.

1 stop16h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 31/8

6:00 a.m.-10:03 p.m.

1 stop19h 03m

C$ 641

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Fri 28/8

7:15 p.m.-12:00 p.m.

2 stops13h 45m

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

6:00 a.m.-3:05 p.m.

2 stops12h 05m

C$ 662

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 16/11

11:50 p.m.-5:07 p.m.

1 stop14h 17m

Montreal Pierre Elliott Trudeau Intl

Sun 22/11

10:30 a.m.-8:54 p.m.

2 stops13h 24m

C$ 673

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Mon 24/8

11:02 p.m.-5:30 p.m.

1 stop15h 28m

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

6:00 a.m.-10:03 p.m.

1 stop19h 03m

C$ 676

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 27/7

8:15 a.m.-7:45 p.m.

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 4/8

6:00 a.m.-2:16 p.m.

1 stop11h 16m

C$ 698

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Fri 4/9

11:02 p.m.-5:30 p.m.

1 stop15h 28m

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

8:00 a.m.-2:51 p.m.

2 stops9h 51m

C$ 704

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sun 2/8

7:00 a.m.-12:25 a.m.

2 stops14h 25m

Montreal Pierre Elliott Trudeau Intl

Tue 11/8

8:00 p.m.-9:00 p.m.

1 stop28h 00m

C$ 706

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 48 resultsSorted by cheapest first
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Best time to book a flight from Washington to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Washington 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 Washington to Montreal Pierre Elliott Trudeau Intl Airport

What is the cheapest month to book a flight from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, May is the cheapest month in which you can book a flight from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 211). Flying from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 762). 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.

How much does it cost to fly round-trip from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport?

How far ahead should I book a flight from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport?

Booking 60 days in advance of your planned departure date is, on average, the best time to get cheap flights from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

Find useful and relevant information for your journey from Washington to Pierre Elliott Trudeau Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport?

    Departing from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport will take you 13h 33m. Airlines will cover a distance of 3742 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport one-way?

    The cheapest airlines for a one-way flight from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport are WestJet (C$ 155), Air Canada (C$ 240), and United Airlines (C$ 320).

  • What are the most popular routes from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport?

    When deciding which route to take from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport consider Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl, Portland - Montreal Pierre Elliott Trudeau Intl or Pasco Tri Cities - Montreal Pierre Elliott Trudeau Intl as they are the most popular.

  • Can I find deals for flights from Washington to Pierre Elliott Trudeau Intl that include hotel bookings?

    Yes. In addition to deals on Washington to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Pierre Elliott Trudeau Intl.

  • Can I find deals for business class flights from Washington to Pierre Elliott Trudeau Intl?

    Yes. Cheapflights offers flight deals from Washington to Pierre Elliott Trudeau Intl 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 State of Washington to Montreal Pierre Elliott Trudeau Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 211). Flying from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 762). 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 Montreal Pierre Elliott Trudeau Intl Airport?

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

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Alternative routes for Washington to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Kansas City to Pierre Elliott Trudeau Intl flights

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