Cheap Flights from Seattle (SEA) to Montreal (YUL)

View AU$258 flight on Mon, 11 May 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Trudeau International Airport (YUL)

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Cheap Flights from Seattle (SEA) to Montreal (YUL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$637 Return, found 3 hours ago
AU$637
Return
found 3 hours ago
Select WestJet flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$637 found 3 hours ago
WestJet
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$664 Return, found 3 hours ago
AU$664
Return
found 3 hours ago
Select WestJet flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$664 found 3 hours ago
WestJet
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$697 Return, found 3 hours ago
AU$697
Return
found 3 hours ago
Select WestJet flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$697 found 3 hours ago
WestJet
Tue, 5 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$706 Return, found 5 days ago
AU$706
Return
found 5 days ago
Select WestJet flight, departing Tue, 5 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$706 found 5 days ago
WestJet
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$707 Return, found 3 hours ago
AU$707
Return
found 3 hours ago
Select WestJet flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$707 found 3 hours ago
Delta
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$731 Return, found 3 hours ago
AU$731
Return
found 3 hours ago
Select Delta flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$731 found 3 hours ago
Delta
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$731 Return, found 3 hours ago
AU$731
Return
found 3 hours ago
Select Delta flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$731 found 3 hours ago
United
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$738 Return, found 3 hours ago
AU$738
Return
found 3 hours ago
Select United flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$738 found 3 hours ago
Alaska Airlines
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$791 Return, found 3 hours ago
AU$791
Return
found 3 hours ago
Select Alaska Airlines flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$791 found 3 hours ago
American Airlines
Mon, 11 May - Wed, 20 May
SEA
Seattle
YUL
Montreal
AU$902 Return, found 3 hours ago
AU$902
Return
found 3 hours ago
Select American Airlines flight, departing Mon, 11 May from Seattle to Montreal, returning Wed, 20 May, priced at AU$902 found 3 hours ago

Find the cheapest month to fly from Seattle (SEA) to Montreal (YUL)

May is typically the cheapest month to fly

From AU$595 - AU$943 per traveller.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Montreal Airport?
Based on fares available within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Seattle - Tacoma Intl. Airport (SEA) to Montreal Airport start from AU$637. Make your booking ASAP to score the best price for your next big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Pierre Elliott Trudeau Intl. Airport (YUL)?
Most flights can be conveniently cancelled online, but whether you incur a fee varies between airlines. If you do have to cancel your escape, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Montréal–Trudeau that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Montreal Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Montréal–Trudeau?
It's around 3 700 kilometres between SEA and Montreal Airport, so expect to be flying for a while. Keep yourself occupied with things like a magazine or a thrilling novel.
Which airlines fly direct from Sea-Tac Airport to Pierre Elliott Trudeau Intl. Airport (YUL)?
A popular option with many travellers, Air Canada (AC) offers 17 flights every month from Seattle - Tacoma Intl. Airport (SEA) to Montréal–Trudeau. Pick the one that fits with your travel schedule and book your seat today.
Are SEA to Montreal Airport flight tickets cheaper when they're purchased at the last minute?
Fares from Seattle - Tacoma Intl. Airport (SEA) to Montréal–Trudeau are available up to 12 months prior to departure on Expedia. And although you may pick up a great last-minute deal, it's never something you can count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid being wedged in the dreaded middle seat! We frequently update our fares to bring you the best bargains, so keep checking in for all the latest specials.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Pierre Elliott Trudeau Intl.
Return price
AU$637
Distance
3643 km

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