Cheap flights from Washington to Montreal Pierre Elliott Trudeau Intl Airport from C$ 163

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 16/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
29 May — 5 Jun1
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 29 April 2026.

Wed 19/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Wed 2/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 25/4C$ 384
Tue 4/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Fri 7/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 28/4C$ 385
Tue 4/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 10/86:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 28/4C$ 396
Thu 10/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 15/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 24/4C$ 400
Tue 8/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 29/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 26/4C$ 403
Wed 12/82:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Tue 18/87:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Deal found 26/4C$ 403
Tue 18/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 25/88:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Deal found 26/4C$ 404
Mon 24/82:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Wed 2/97:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Deal found 25/4C$ 404
Tue 22/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 28/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 24/4C$ 406
Tue 14/72:30 p.m.
PDX
-
YUL
1 stop13h 35m
WestJet
Fri 24/77:15 a.m.
YUL
-
PDX
1 stop9h 35m
WestJet
Deal found 28/4C$ 406
Sat 19/910:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Mon 28/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 25/4C$ 410
Wed 15/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 20/75:30 p.m.
YUL
-
SEA
1 stop19h 10m
WestJet
Deal found 28/4C$ 415

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 29 April 2026.

Round-trip from

C$ 384

One-way from

C$ 163

Popular in

December

Cheapest in

March

Average price

C$ 863
WestJet
  • WestJet
  • 19/8-2/9
  • 3 total stops
  • 23h 30m total
  • Washington to Montreal
WestJet
  • WestJet
  • 16/7
  • 1 total stop
  • 8h 30m total
  • Washington to Montreal
Highest demand for flights based on searches. 11% potential increase in price (C$ 138 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 35 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 29 April 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

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 10/7

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

2 stops10h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

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

2 stops15h 00m

C$ 432

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Sun 13/9

10:50 p.m.-4:10 p.m.

1 stop14h 20m

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

6:35 p.m.-12:47 a.m.

1 stop9h 12m

C$ 486

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sun 12/7

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

1 stop8h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 21/7

5:45 p.m.-6:45 p.m.

2 stops28h 00m

C$ 490

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Mon 24/8

10:50 p.m.-1:09 p.m.

1 stop11h 19m

Montreal Pierre Elliott Trudeau Intl

Fri 4/9

6:10 a.m.-11:35 a.m.

1 stop8h 25m

C$ 511

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Mon 19/10

7:15 p.m.-10:40 a.m.

2 stops12h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 24/10

11:23 a.m.-9:05 p.m.

2 stops12h 42m

C$ 522

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Sat 29/8

9:45 p.m.-4:01 p.m.

2 stops15h 16m

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

6:00 a.m.-10:44 a.m.

1 stop7h 44m

C$ 534

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Tue 7/7

12:35 a.m.-5:38 p.m.

2 stops14h 03m

Montreal Pierre Elliott Trudeau Intl

Wed 15/7

6:00 a.m.-4:09 p.m.

2 stops13h 09m

C$ 542

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Tue 26/5

6:00 a.m.-11:57 p.m.

2 stops14h 57m

Montreal Pierre Elliott Trudeau Intl

Mon 1/6

6:00 a.m.-4:00 p.m.

2 stops13h 00m

C$ 542

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Tue 30/6

12:31 a.m.-4:17 p.m.

2 stops12h 46m

Montreal Pierre Elliott Trudeau Intl

Sat 18/7

9:30 a.m.-8:15 p.m.

2 stops13h 45m

C$ 542

PortlandMontreal

PDX - YUL

PDXYUL

Portland

Tue 2/6

6:00 a.m.-11:57 p.m.

2 stops14h 57m

Montreal Pierre Elliott Trudeau Intl

Wed 10/6

7:00 a.m.-1:00 p.m.

1 stop9h 00m

C$ 549

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 54 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

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

Booking 15 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.

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$ 206). Flying from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 744). 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?

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 30m. Airlines will cover a distance of 3663 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$ 235), and United Airlines (C$ 313).

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

  • 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$ 206). Flying from State of Washington to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 744). 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
Sherbrooke
Brossard
Montebello
Cornwall
Longueuil
Boucherville
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

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