Cheap flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport from C$ 174
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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
26 Jan — 2 Feb1
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 May or June, booked 42 days in advance, depart on a Friday or Thursday and return on a Friday
Cheap flight deals from Seattle to Pierre Elliott Trudeau Intl
Enter your travel dates to find the best prices.
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 27 December 2025.
Wed 31/127:55 a.m.SEA - YUL
1 stop12h 50mMultiple Airlines
Tue 6/11:40 p.m.YUL - SEA
2 stops34h 48mMultiple Airlines
Deal found 26/12C$ 1,198
Wed 31/129:25 a.m.SEA - YUL
2 stops18h 40mWestJet
Tue 6/14:15 p.m.YUL - SEA
2 stops31h 35mWestJet
Deal found 26/12C$ 1,299
Mon 29/1210:05 a.m.SEA - YUL
2 stops10h 04mAir Canada
Wed 31/123:10 p.m.YUL - SEA
1 stop10h 06mAir Canada
Deal found 25/12C$ 1,430
Mon 29/1210:05 a.m.SEA - YUL
1 stop7h 55mAir Canada
Sat 3/17:30 a.m.YUL - SEA
1 stop17h 46mAir Canada
Deal found 25/12C$ 1,627
Fri 26/1211:15 p.m.SEA - YUL
1 stop17h 33mUnited Airlines
Sun 4/15:25 p.m.YUL - SEA
1 stop19h 31mUnited Airlines
Deal found 26/12C$ 1,723
Fri 26/123:10 p.m.SEA - YUL
1 stop12h 55mMultiple Airlines
Sat 3/17:20 p.m.YUL - SEA
2 stops39h 17mMultiple Airlines
Deal found 26/12C$ 1,958
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 27 December 2025.
Mon 12/13:10 p.m.SEA - YUL
1 stop12h 55mWestJet
Tue 20/17:30 p.m.YUL - SEA
1 stop21h 50mWestJet
Deal found 26/12C$ 395
Thu 16/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Fri 24/44:15 p.m.YUL - SEA
1 stop25h 16mWestJet
Deal found 27/12C$ 416
Fri 1/57:05 a.m.SEA - YUL
1 stop14h 37mWestJet
Mon 4/55:30 p.m.YUL - SEA
1 stop22h 38mWestJet
Deal found 25/12C$ 416
Thu 14/57:05 a.m.SEA - YUL
2 stops14h 35mWestJet
Fri 29/56:45 a.m.YUL - SEA
2 stops33h 23mWestJet
Deal found 26/12C$ 435
Sun 19/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Sat 25/46:45 a.m.YUL - SEA
2 stops33h 23mWestJet
Deal found 25/12C$ 440
Mon 16/33:10 p.m.SEA - YUL
1 stop12h 55mWestJet
Thu 26/36:45 a.m.YUL - SEA
2 stops34h 34mWestJet
Deal found 25/12C$ 468
Sun 19/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Fri 24/44:15 p.m.YUL - SEA
1 stop25h 16mWestJet
Deal found 27/12C$ 469
Sun 19/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Thu 23/44:15 p.m.YUL - SEA
1 stop25h 04mWestJet
Deal found 27/12C$ 469
Mon 20/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Sun 26/45:30 p.m.YUL - SEA
1 stop22h 38mWestJet
Deal found 25/12C$ 469
Sun 19/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Tue 21/44:15 p.m.YUL - SEA
1 stop25h 04mWestJet
Deal found 27/12C$ 469
Sun 19/43:10 p.m.SEA - YUL
1 stop21h 03mWestJet
Wed 22/44:15 p.m.YUL - SEA
1 stop25h 04mWestJet
Deal found 25/12C$ 469
Direct flights from Seattle to Pierre Elliott Trudeau Intl
Explore direct flight options from Seattle to Pierre Elliott Trudeau Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 27 December 2025.
Fri 1/57:15 a.m.SEA - YUL
Nonstop5h 22mAir Canada
Fri 8/54:45 p.m.YUL - SEA
Nonstop5h 52mAir Canada
Deal found 26/12C$ 734
Fri 22/57:15 a.m.SEA - YUL
Nonstop5h 22mAir Canada
Wed 27/54:45 p.m.YUL - SEA
Nonstop5h 52mAir Canada
Deal found 27/12C$ 1,042
Tue 9/67:15 a.m.SEA - YUL
Nonstop5h 22mAir Canada
Thu 18/64:50 p.m.YUL - SEA
Nonstop5h 56mAir Canada
Deal found 27/12C$ 1,187
Tue 19/57:15 a.m.SEA - YUL
Nonstop5h 22mAir Canada
Mon 25/54:45 p.m.YUL - SEA
Nonstop5h 52mAir Canada
Deal found 24/12C$ 1,278
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 27 December 2025 and is based on user searches.
Mon 12/13:10 p.m.SEA - YUL
1 stop12h 55mWestJet
Tue 20/17:30 p.m.YUL - SEA
1 stop21h 50mWestJet
Deal found 25/12C$ 392
Mon 12/13:10 p.m.SEA - YUL
1 stop12h 55mWestJet
Wed 14/17:30 p.m.YUL - SEA
1 stop21h 50mWestJet
Deal found 25/12C$ 469
Sun 18/111:05 p.m.SEA - YUL
1 stop14h 22mMultiple Airlines
Fri 23/17:30 p.m.YUL - SEA
2 stops17h 52mMultiple Airlines
Deal found 27/12C$ 459
Thu 22/111:05 p.m.SEA - YUL
1 stop14h 22mMultiple Airlines
Thu 29/17:30 p.m.YUL - SEA
2 stops17h 52mMultiple Airlines
Deal found 25/12C$ 454
Fri 23/111:05 p.m.SEA - YUL
1 stop14h 22mMultiple Airlines
Fri 30/17:30 p.m.YUL - SEA
2 stops17h 52mMultiple Airlines
Deal found 26/12C$ 465
Fri 23/13:10 p.m.SEA - YUL
2 stops22h 17mMultiple Airlines
Mon 26/17:30 p.m.YUL - SEA
1 stop27h 22mMultiple Airlines
Deal found 26/12C$ 472
Sat 24/111:05 p.m.SEA - YUL
1 stop14h 22mMultiple Airlines
Sat 31/16:45 a.m.YUL - SEA
2 stops34h 34mMultiple Airlines
Deal found 27/12C$ 448
Sun 25/13:10 p.m.SEA - YUL
1 stop12h 55mWestJet
Sun 1/27:30 p.m.YUL - SEA
1 stop21h 49mWestJet
Deal found 26/12C$ 394
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 27 December 2025.
Thu 22/13:10 p.m.SEA - YUL
2 stops22h 17mMultiple Airlines
Deal found 26/12C$ 174
Thu 22/13:10 p.m.SEA - YUL
1 stop12h 55mWestJet
Deal found 26/12C$ 175
Sat 2/57:05 a.m.SEA - YUL
1 stop14h 37mWestJet
Deal found 26/12C$ 176
Sat 7/211:55 a.m.SEA - YUL
2 stops25h 34mMultiple Airlines
Deal found 26/12C$ 180
Tue 24/26:30 p.m.SEA - YUL
3 stops27h 08mMultiple Airlines
Deal found 26/12C$ 200
Sun 11/111:55 a.m.SEA - YUL
2 stops25h 32mMultiple Airlines
Deal found 24/12C$ 208
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 27 December 2025.
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 27 December 2025.
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
Seattle
Fly to
Pierre Elliott Trudeau Intl
Route
Depart
Return
Price
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Mon 12/1
3:10 p.m.-7:05 a.m.
1 stop12h 55m
Montreal Pierre Elliott Trudeau Intl
Tue 20/1
7:30 p.m.-2:20 p.m.
1 stop21h 50m
C$ 395
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Thu 16/4
3:10 p.m.-3:13 p.m.
1 stop21h 03m
Montreal Pierre Elliott Trudeau Intl
Fri 24/4
4:15 p.m.-2:31 p.m.
1 stop25h 16m
C$ 416
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Fri 1/5
7:05 a.m.-12:42 a.m.
1 stop14h 37m
Montreal Pierre Elliott Trudeau Intl
Mon 4/5
5:30 p.m.-1:08 p.m.
1 stop22h 38m
C$ 416
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Thu 14/5
7:05 a.m.-12:40 a.m.
2 stops14h 35m
Montreal Pierre Elliott Trudeau Intl
Fri 29/5
6:45 a.m.-1:08 p.m.
2 stops33h 23m
C$ 435
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Sun 19/4
3:10 p.m.-3:13 p.m.
1 stop21h 03m
Montreal Pierre Elliott Trudeau Intl
Sat 25/4
6:45 a.m.-1:08 p.m.
2 stops33h 23m
C$ 440
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Mon 16/3
3:10 p.m.-7:05 a.m.
1 stop12h 55m
Montreal Pierre Elliott Trudeau Intl
Thu 26/3
6:45 a.m.-2:19 p.m.
2 stops34h 34m
C$ 468
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Sun 19/4
3:10 p.m.-3:13 p.m.
1 stop21h 03m
Montreal Pierre Elliott Trudeau Intl
Fri 24/4
4:15 p.m.-2:31 p.m.
1 stop25h 16m
C$ 469
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Sun 19/4
3:10 p.m.-3:13 p.m.
1 stop21h 03m
Montreal Pierre Elliott Trudeau Intl
Thu 23/4
4:15 p.m.-2:19 p.m.
1 stop25h 04m
C$ 469
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Mon 20/4
3:10 p.m.-3:13 p.m.
1 stop21h 03m
Montreal Pierre Elliott Trudeau Intl
Sun 26/4
5:30 p.m.-1:08 p.m.
1 stop22h 38m
C$ 469
SeattleMontreal
SEA - YUL
SEAYUL
Seattle/Tacoma Intl
Sun 19/4
3:10 p.m.-3:13 p.m.
1 stop21h 03m
Montreal Pierre Elliott Trudeau Intl
Tue 21/4
4:15 p.m.-2:19 p.m.
1 stop25h 04m
C$ 469
Flights are sorted by cheapest round-trip flights first.
Deals found on 26/12
Showing 1-10 of 19 results
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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.
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
Prices
More
How far ahead should I book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Pierre Elliott Trudeau Intl. Price data was last updated on 19 December 2025.
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 42 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, May is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 293). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 770). 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.
What’s the top layover airport for flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Share of one-stop round-trip flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Calgary (YYC) – chosen by Cheapflights users on 50% of one-stop itineraries from Seattle to Montreal Pierre Elliott Trudeau Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Average round-trip fare for 1-stop flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Calgary (YYC) is the most affordable 1-stop option, with an average round-trip price of C$ 620.
What’s the fastest layover option from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Shortest average travel time for 1-stop one-way flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Calgary (YYC) have the shortest average one-way travel time for 1-stop routes: 7h 36m.
Which airport typically offers the quickest layover for flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport?
Average layover duration for 1-stop one-way flights from Seattle to Montreal Pierre Elliott Trudeau Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via San Francisco (SFO) offer the fastest connection on this route, with an average layover time of 1h 06m.
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 12h 55m. The distance from Seattle to Montreal Pierre Elliott Trudeau Intl Airport is about 3663 km.
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$ 162 on WestJet. Other airlines that offer cheap prices include Air Canada from C$ 235 and United Airlines from C$ 327 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, May is the cheapest month in which you can book a flight from Seattle to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 293). Flying from Seattle to Montreal Pierre Elliott Trudeau Intl Airport in December is currently the most expensive (average of C$ 770). 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.
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on 27 December 2025.
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 27 December 2025.
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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