$132+ Cheap flights from Seattle (SEA) to Pierre Elliott Trudeau Intl (YUL)
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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
Jun 9 — Jun 161
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Pierre Elliott Trudeau Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Montreal Pierre Elliott Trudeau Intl are usually found in October or May, booked 76 days in advance, depart on a Monday or Wednesday and return on a Wednesday
Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Pierre Elliott Trudeau IntlExplore 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 May 10, 2026.
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 May 10, 2026.
This Trip.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Mon 8/106:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/6![WestJet logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Sun 7/266:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/10![WestJet logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Tue 7/286:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/10![WestJet logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Mon 7/278:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$326
This Trip.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/137:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Wed 7/228:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/7![WestJet logo]()
$330
This Trip.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Sun 7/268:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/6![WestJet logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Wed 7/297:15 am
YUL
- SEA
1 stop14h 30m
WestJet
Deal found 5/10![WestJet logo]()
$335
This FlightHub deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Mon 8/316:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/6![WestJet logo]()
$336
This FlightHub deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Tue 8/48:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/7![WestJet logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Thu 8/208:00 pm
YUL
- SEA
1 stop28h 00m
WestJet
Deal found 5/7![WestJet logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Sat 7/258:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$340
This oojo deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:30 am
SEA
- YUL
2 stops10h 55m
WestJet
Sat 8/86:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/10![WestJet logo]()
$341
Best flights from Seattle to Pierre Elliott Trudeau IntlDiscover 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 May 10, 2026.
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 May 10, 2026.
This Trip.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:30 am
SEA
- YUL
1 stop10h 15m
WestJet
Tue 9/156:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/9![WestJet logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/187:35 pm
SEA
- YUL
2 stops18h 10m
Multiple Airlines
Mon 6/227:20 pm
YUL
- SEA
1 stop30h 47m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$570
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:30 am
SEA
- YUL
2 stops10h 23m
Delta
Sat 6/62:29 pm
YUL
- SEA
2 stops12h 30m
Delta
Deal found 5/7![Delta logo]()
$643
This WestJet deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:30 am
SEA
- YUL
2 stops10h 55m
WestJet
Wed 9/306:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/8![WestJet logo]()
$424
This Mytrip deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:00 am
SEA
- YUL
3 stops14h 37m
Multiple Airlines
Fri 7/246:45 am
YUL
- SEA
3 stops15h 00m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$640
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:30 am
SEA
- YUL
2 stops11h 27m
Delta
Mon 6/86:00 am
YUL
- SEA
2 stops9h 36m
Delta
Deal found 5/7![Delta logo]()
$656
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:30 am
SEA
- YUL
2 stops11h 27m
Delta
Mon 6/86:00 am
YUL
- SEA
2 stops19h 00m
Delta
Deal found 5/7![Delta logo]()
$656
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:00 pm
SEA
- YUL
2 stops13h 05m
Multiple Airlines
Sat 10/107:20 pm
YUL
- SEA
3 stops26h 25m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$667
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:30 am
SEA
- YUL
2 stops11h 27m
Delta
Sun 6/76:00 am
YUL
- SEA
2 stops10h 34m
Delta
Deal found 5/7![Delta logo]()
$666
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/211:59 pm
SEA
- YUL
2 stops10h 40m
Delta
Fri 6/56:00 am
YUL
- SEA
1 stop11h 50m
Delta
Deal found 5/6![Delta logo]()
$672
Last-minute flights from Seattle to Pierre Elliott Trudeau IntlDiscover last-minute flight deals from Seattle to Pierre Elliott Trudeau Intl. Data last updated May 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Pierre Elliott Trudeau Intl. Data last updated May 10, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:30 am
SEA
- YUL
1 stop10h 15m
WestJet
Sun 6/78:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/6![WestJet logo]()
$391
This oojo deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:30 am
SEA
- YUL
2 stops28h 50m
WestJet
Fri 6/56:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/6![WestJet logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:30 am
SEA
- YUL
1 stop10h 15m
WestJet
Wed 6/175:45 pm
YUL
- SEA
2 stops28h 00m
WestJet
Deal found 5/6![WestJet logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/810:30 am
SEA
- YUL
1 stop10h 15m
WestJet
Thu 6/115:45 pm
YUL
- SEA
2 stops18h 55m
WestJet
Deal found 5/6![WestJet logo]()
$403
This Trip.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:30 am
SEA
- YUL
2 stops27h 15m
WestJet
Mon 6/156:45 am
YUL
- SEA
2 stops15h 00m
WestJet
Deal found 5/5![WestJet logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2310:30 am
SEA
- YUL
2 stops27h 15m
WestJet
Sun 7/58:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:30 am
SEA
- YUL
2 stops10h 55m
WestJet
Sun 7/58:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:30 am
SEA
- YUL
2 stops10h 55m
WestJet
Tue 7/78:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$373
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:35 pm
SEA
- YUL
2 stops25h 50m
WestJet
Sun 7/58:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/267:35 pm
SEA
- YUL
2 stops25h 50m
WestJet
Mon 7/68:00 pm
YUL
- SEA
1 stop16h 40m
WestJet
Deal found 5/10![WestJet logo]()
$390
One-way flights from Seattle to Pierre Elliott Trudeau IntlSearch for one-way flight options from Seattle to Pierre Elliott Trudeau Intl. Find affordable one-way fares based on user searches. Data last updated May 10, 2026.
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 May 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Deal found 5/8![WestJet logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Deal found 5/8![WestJet logo]()
$135
This Justfly.com deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Deal found 5/6![WestJet logo]()
$136
This Justfly.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/17:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Deal found 5/10![WestJet logo]()
$137
This FlightHub deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Deal found 5/6![WestJet logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:35 pm
SEA
- YUL
1 stop8h 30m
WestJet
Deal found 5/10![WestJet logo]()
$144
This oojo deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:30 am
SEA
- YUL
2 stops10h 55m
WestJet
Deal found 5/7![WestJet logo]()
$146
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 May 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $297 (Kiwi.com) |
One-way from | $132 (Kiwi.com) |
Popular in | January |
Cheapest in | October |
Average price | $559 |
Good round-trip deal | $3,219 or less |
Good one-way deal | $279 or less |
Cheapflights Fare Finder
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 2,558,603 searches. Data last updated May 10, 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
Cheapest round-trip
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Fri 9/11
10:30 am-11:45 pm
1 stop10h 15m
Montreal Pierre Elliott Trudeau Intl
Tue 9/15
6:45 am-6:45 pm
2 stops15h 00m
$375
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Mon 9/28
10:30 am-12:25 am
2 stops10h 55m
Montreal Pierre Elliott Trudeau Intl
Wed 9/30
6:45 am-6:45 pm
2 stops15h 00m
$424
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Thu 6/18
7:35 pm-4:45 pm
2 stops18h 10m
Montreal Pierre Elliott Trudeau Intl
Mon 6/22
7:20 pm-11:07 pm
1 stop30h 47m
$570
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Sun 7/12
7:00 am-12:37 am
3 stops14h 37m
Montreal Pierre Elliott Trudeau Intl
Fri 7/24
6:45 am-6:45 pm
3 stops15h 00m
$640
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Tue 6/2
5:30 am-6:53 pm
2 stops10h 23m
Montreal Pierre Elliott Trudeau Intl
Sat 6/6
2:29 pm-11:59 pm
2 stops12h 30m
$643
Quickest round-trip
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Tue 6/2
9:30 am-11:57 pm
2 stops11h 27m
Montreal Pierre Elliott Trudeau Intl
Mon 6/8
6:00 am-12:36 pm
2 stops9h 36m
$656
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Wed 6/3
9:30 am-11:57 pm
2 stops11h 27m
Montreal Pierre Elliott Trudeau Intl
Mon 6/8
6:00 am-10:00 pm
2 stops19h 00m
$656
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Fri 6/5
9:30 am-11:57 pm
2 stops11h 27m
Montreal Pierre Elliott Trudeau Intl
Sun 6/7
6:00 am-1:34 pm
2 stops10h 34m
$666
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Tue 10/6
3:00 pm-7:05 am
2 stops13h 05m
Montreal Pierre Elliott Trudeau Intl
Sat 10/10
7:20 pm-6:45 pm
3 stops26h 25m
$667
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Tue 6/2
11:59 pm-1:39 pm
2 stops10h 40m
Montreal Pierre Elliott Trudeau Intl
Fri 6/5
6:00 am-2:50 pm
1 stop11h 50m
$672
Showing 1-10 of 20 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Montreal Pierre Elliott Trudeau Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Montreal Pierre Elliott Trudeau Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 best time to book flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is 74 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 $499). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in January is currently the most expensive (average of $1,002). 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?
Reviews of airlines servicing Pierre Elliott Trudeau Intl
Get insights into the airlines that provide service to Pierre Elliott Trudeau Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pierre Elliott Trudeau Intl. Reviews last updated May 10, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andWestJet from Seattle to Montreal Pierre Elliott Trudeau Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Boarding
8.1
Food
7.2
Overall
7.9
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling 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 locationsLaval
Longueuil
Dorval
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Seattle and Pierre Elliott Trudeau Intl flights
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Top 4 airlines flying from Seattle to Pierre Elliott Trudeau Intl
Discover the top 4 airlines that operate flights from Seattle to Pierre Elliott Trudeau Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$441 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$265 | Average$600 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$280 | Average$698 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$310 | Average$619 | FlexibilityNo cancel fee | On-timeN/A |