Cheap flights from Seattle 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
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl are usually found in October or August, booked 76 days in advance, depart on a Thursday or Saturday and return on a Wednesday
Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl
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Cheapest flights from Seattle to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from Seattle 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
Best flights from Seattle to Pierre Elliott Trudeau Intl
Discover carefully curated flight deals from Seattle to Pierre Elliott Trudeau Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 14 June 2026.
Mon 16/1111:50 p.m.
SEA
-
YUL
1 stop14h 17m
Multiple Airlines
Sun 22/1110:30 a.m.
YUL
-
SEA
2 stops13h 24m
Multiple Airlines
Deal found 9/6C$ 673
Mon 27/78:15 a.m.
SEA
-
YUL
1 stop8h 30m
United Airlines
Tue 4/86:00 a.m.
YUL
-
SEA
1 stop11h 16m
United Airlines
Deal found 9/6C$ 698
Sun 2/87:00 a.m.
SEA
-
YUL
2 stops14h 25m
WestJet
Tue 11/88:00 p.m.
YUL
-
SEA
1 stop28h 00m
WestJet
Deal found 10/6C$ 706
Fri 26/69:45 a.m.
SEA
-
YUL
1 stop10h 43m
Delta
Sun 12/77:00 a.m.
YUL
-
SEA
1 stop12h 49m
Delta
Deal found 12/6C$ 794
Tue 14/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Thu 23/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 12/6C$ 708
Wed 8/77:05 p.m.
SEA
-
YUL
2 stops12h 35m
United Airlines
Fri 10/76:35 p.m.
YUL
-
SEA
1 stop9h 54m
United Airlines
Deal found 9/6C$ 712
Fri 10/711:00 p.m.
SEA
-
YUL
1 stop14h 10m
Multiple Airlines
Wed 22/76:00 a.m.
YUL
-
SEA
1 stop18h 07m
Multiple Airlines
Deal found 10/6C$ 729
Wed 15/710:30 a.m.
SEA
-
YUL
2 stops27h 15m
WestJet
Sun 19/78:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Deal found 9/6C$ 716
Thu 9/75:15 p.m.
SEA
-
YUL
1 stop15h 45m
United Airlines
Sun 12/78:15 a.m.
YUL
-
SEA
1 stop17h 55m
United Airlines
Deal found 13/6C$ 848
Mon 16/113:10 p.m.
SEA
-
YUL
2 stops30h 23m
WestJet
Sun 22/116:45 a.m.
YUL
-
SEA
2 stops33h 35m
WestJet
Deal found 9/6C$ 780
Sat 4/71:03 p.m.
SEA
-
YUL
1 stop15h 35m
United Airlines
Sat 11/74:25 p.m.
YUL
-
SEA
1 stop18h 30m
United Airlines
Deal found 13/6C$ 848
Wed 15/77:00 a.m.
SEA
-
YUL
2 stops30h 45m
WestJet
Mon 20/76:45 a.m.
YUL
-
SEA
2 stops17h 15m
WestJet
Deal found 12/6C$ 838
Last-minute flights from Seattle to Pierre Elliott Trudeau Intl
Discover last-minute flight deals from Seattle to Pierre Elliott Trudeau Intl. Data last updated 14 June 2026 and is based on user searches.
Thu 2/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Thu 9/78:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Deal found 11/6C$ 571
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
Tue 7/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 14/76:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 9/6C$ 576
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 8/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 13/78:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Deal found 12/6C$ 579
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
Sat 18/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 20/75:30 p.m.
YUL
-
SEA
1 stop19h 10m
WestJet
Deal found 11/6C$ 582
Sun 19/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Tue 28/76:45 a.m.
YUL
-
SEA
2 stops17h 15m
WestJet
Deal found 10/6C$ 585
Sun 26/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Sat 1/88:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Deal found 10/6C$ 578
One-way flights from Seattle to Pierre Elliott Trudeau Intl
Search for one-way flight options from Seattle to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated 14 June 2026.
Sat 18/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 9/6C$ 255
Mon 13/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 12/6C$ 256
Fri 25/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 10/6C$ 257
Fri 3/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 10/6C$ 259
Wed 8/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 10/6C$ 260
Sun 9/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 10/6C$ 262
Tue 30/67:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 9/6C$ 263
Wed 14/107:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 12/6C$ 267
Tue 8/98:00 a.m.
SEA
-
YUL
1 stop9h 21m
Air Canada
Deal found 11/6C$ 269
Thu 17/910:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 11/6C$ 270
Wed 1/77:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 14/6C$ 273
Find flight deals from Seattle to Pierre Elliott Trudeau Intl
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Pierre Elliott Trudeau Intl (YUL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 June 2026.
Customize your flight search to find flights from Seattle 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 Seattle 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
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
Quickest round-trip
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
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
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Tue 14/7
7:35 p.m.-7:05 a.m.
1 stop8h 30m
Montreal Pierre Elliott Trudeau Intl
Thu 23/7
6:45 a.m.-6:45 p.m.
2 stops15h 00m
C$ 708
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Wed 8/7
7:05 p.m.-10:40 a.m.
2 stops12h 35m
Montreal Pierre Elliott Trudeau Intl
Fri 10/7
6:35 p.m.-1:29 a.m.
1 stop9h 54m
C$ 712
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Wed 15/7
10:30 a.m.-4:45 p.m.
2 stops27h 15m
Montreal Pierre Elliott Trudeau Intl
Sun 19/7
8:00 p.m.-9:40 a.m.
1 stop16h 40m
C$ 716
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Fri 10/7
11:00 p.m.-4:10 p.m.
1 stop14h 10m
Montreal Pierre Elliott Trudeau Intl
Wed 22/7
6:00 a.m.-9:07 p.m.
1 stop18h 07m
C$ 729
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Mon 16/11
3:10 p.m.-12:33 a.m.
2 stops30h 23m
Montreal Pierre Elliott Trudeau Intl
Sun 22/11
6:45 a.m.-1:20 p.m.
2 stops33h 35m
C$ 780
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Fri 26/6
9:45 a.m.-11:28 p.m.
1 stop10h 43m
Montreal Pierre Elliott Trudeau Intl
Sun 12/7
7:00 a.m.-4:49 p.m.
1 stop12h 49m
C$ 794
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Wed 15/7
7:00 a.m.-4:45 p.m.
2 stops30h 45m
Montreal Pierre Elliott Trudeau Intl
Mon 20/7
6:45 a.m.-9:00 p.m.
2 stops17h 15m
C$ 838
Flights are sorted by cheapest round-trip flights first.
Deals found on 12/6
Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Pierre Elliott Trudeau Intl
Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from Seattle with our price prediction graph.
SEA-YUL
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 Seattle to Montreal Pierre Elliott Trudeau Intl Airport
How far ahead should I book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
The price you pay for your flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 74 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 698). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of C$ 1,401). 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 Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Related info for your journey
Find useful and relevant information for your journey from Seattle 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.
What airport do you fly from for flights from Seattle to Montreal Pierre Elliott Trudeau Intl?
Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Montreal Pierre Elliott Trudeau Intl. 0 airlines have flights from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl should not be difficult; the airport handles an average of 0 outbound flights to Montreal Pierre Elliott Trudeau Intl per day.
How long is the flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Departing from Seattle to Montreal Pierre Elliott Trudeau Intl Airport will take you 8h 30m. The distance from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is about 3663 km. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from Seattle to Montreal Pierre Elliott Trudeau Intl Airport one-way?
One-way options have recently been found by users for as low as C$ 155 on WestJet. Other airlines that offer cheap prices include Air Canada from C$ 240 and United Airlines from C$ 320 one-way.
Can I find deals for flights from Seattle to Pierre Elliott Trudeau Intl that include hotel bookings?
Yes. In addition to deals on Seattle to Pierre Elliott Trudeau Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle 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 Seattle to Pierre Elliott Trudeau Intl.
Can I find deals for business class flights from Seattle to Pierre Elliott Trudeau Intl?
Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Currently, October is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 698). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of C$ 1,401). 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.
Search flights from Seattle to Pierre Elliott Trudeau Intl by cabin class
Find flights from Seattle to Pierre Elliott Trudeau Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Explore flights to Pierre Elliott Trudeau Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 June 2026.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Seattle to Pierre Elliott Trudeau Intl?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Pierre Elliott Trudeau Intl from Seattle today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Seattle to Pierre Elliott Trudeau Intl?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Pierre Elliott Trudeau Intl.
Can Cheapflights find flights from Seattle to Pierre Elliott Trudeau Intl with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Pierre Elliott Trudeau Intl flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Seattle to Pierre Elliott Trudeau Intl become cheaper?
Yes, Cheapflights offers price alerts on Seattle to Pierre Elliott Trudeau Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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