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Cheap flights from Washington to Montreal Pierre Elliott Trudeau Intl Airport from C$ 199

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
15 Apr — 22 Apr1
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 16 March 2026.

Mon 4/57:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Fri 8/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/3C$ 464
Mon 27/47:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 4/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/3C$ 465
Fri 29/57:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 2/66:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/3C$ 466
Thu 7/57:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Sun 10/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 12/3C$ 468
Mon 25/510:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Mon 1/66:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/3C$ 476
Wed 13/510:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Wed 20/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 12/3C$ 477
Thu 14/510:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Sun 17/57:00 a.m.
YUL
-
SEA
2 stops14h 45m
WestJet
Deal found 11/3C$ 479
Tue 2/67:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 16/66:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 13/3C$ 482
Wed 29/47:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Wed 6/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 15/3C$ 486
Thu 30/47:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 4/56:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 16/3C$ 493
Sat 27/611:40 p.m.
PDX
-
YUL
1 stop8h 00m
United Airlines
Thu 16/76:35 p.m.
YUL
-
PDX
1 stop9h 15m
United Airlines
Deal found 13/3C$ 493
Mon 3/811:30 p.m.
PDX
-
YUL
1 stop12h 10m
United Airlines
Sat 8/89:45 a.m.
YUL
-
PDX
1 stop9h 07m
United Airlines
Deal found 13/3C$ 506

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 16 March 2026.

Round-trip from

C$ 464

One-way from

C$ 199

Popular in

December

Cheapest in

March

Average price

C$ 461
WestJet
  • WestJet
  • 4/5-8/5
  • 3 total stops
  • 23h 30m total
  • Washington to Montreal
Search Deals
4/5
  • 4/5
  • 2 total stops
  • 30h 46m total
  • Washington to Montreal
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 16 March 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
Quickest round-trip

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Sat 27/6

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

1 stop8h 00m

Montreal Pierre Elliott Trudeau Intl

Thu 16/7

6:35 p.m.-12:50 a.m.

1 stop9h 15m

C$ 521

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Mon 13/4

11:15 p.m.-1:09 p.m.

1 stop10h 54m

Montreal Pierre Elliott Trudeau Intl

Wed 15/4

2:20 p.m.-8:42 p.m.

1 stop9h 22m

C$ 535

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 7/5

10:30 a.m.-12:25 a.m.

2 stops10h 55m

Montreal Pierre Elliott Trudeau Intl

Sun 10/5

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

2 stops15h 00m

C$ 576

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Mon 20/4

11:10 p.m.-4:27 p.m.

1 stop14h 17m

Montreal Pierre Elliott Trudeau Intl

Fri 24/4

4:15 p.m.-2:31 p.m.

1 stop25h 16m

C$ 591

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Thu 14/5

7:35 p.m.-11:45 p.m.

1 stop25h 10m

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

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

2 stops15h 00m

C$ 610

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Fri 24/4

5:35 p.m.-11:38 a.m.

2 stops15h 03m

Montreal Pierre Elliott Trudeau Intl

Mon 27/4

1:15 p.m.-9:59 p.m.

1 stop11h 44m

C$ 623

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Mon 11/5

6:00 a.m.-11:13 p.m.

2 stops14h 13m

Montreal Pierre Elliott Trudeau Intl

Mon 18/5

6:00 a.m.-5:11 p.m.

2 stops14h 11m

C$ 624

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 1/7

7:35 p.m.-7:05 a.m.

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 9/7

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

2 stops15h 00m

C$ 628

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Wed 1/7

11:30 p.m.-5:27 p.m.

1 stop14h 57m

Montreal Pierre Elliott Trudeau Intl

Sat 18/7

1:10 p.m.-9:48 p.m.

1 stop11h 38m

C$ 639

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Fri 3/4

5:00 a.m.-10:06 p.m.

2 stops14h 06m

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

9:45 a.m.-9:14 p.m.

2 stops14h 29m

C$ 665

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/3

Showing 1-10 of 49 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$ 270). Flying from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 774). 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.

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 8h. 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$ 152), Air Canada (C$ 236), and United Airlines (C$ 314).

  • 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, Pasco Tri Cities - Montreal Pierre Elliott Trudeau Intl or Portland - 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$ 270). Flying from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 774). 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
Trois-Rivières
Dorval
Sherbrooke
Cornwall
Montebello
Brossard
Boucherville
Longueuil
Magog
Saint-Jean-sur-Richelieu
Bromont
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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Salt Lake City to Pierre Elliott Trudeau Intl flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Washington to Pierre Elliott Trudeau Intl?

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Can Cheapflights find flights from Washington to Pierre Elliott Trudeau Intl with no change fees?

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