€203 Cheap Flights Montreal to Seattle (YUL-SEA)

View €203 flight on Wed, 10 Jun 2026Opens in a new window

Popular airlines from Montreal–Trudeau Intl. Airport (YUL) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Montreal to Seattle (YUL-SEA)

Prices were available within the past 7 days and start at €203 for one-way flights and €413 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€413 Return, found 13 hours ago
€413
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €413 found 13 hours ago
Air Canada
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€436 Return, found 13 hours ago
€436
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €436 found 13 hours ago
United
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€455 Return, found 13 hours ago
€455
Return
found 13 hours ago
Select United flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €455 found 13 hours ago
United
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€478 Return, found 13 hours ago
€478
Return
found 13 hours ago
Select United flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €478 found 13 hours ago
Air Canada
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€478 Return, found 13 hours ago
€478
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €478 found 13 hours ago
Air Canada
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€480 Return, found 13 hours ago
€480
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €480 found 13 hours ago
Air Canada
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€481 Return, found 13 hours ago
€481
Return
found 13 hours ago
Select Air Canada flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €481 found 13 hours ago
WestJet
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€518 Return, found 13 hours ago
€518
Return
found 13 hours ago
Select WestJet flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €518 found 13 hours ago
Delta
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€578 Return, found 13 hours ago
€578
Return
found 13 hours ago
Select Delta flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €578 found 13 hours ago
American Airlines
Sun, 26 Apr - Mon, 4 May
YUL
Montreal
SEA
Seattle
€607 Return, found 13 hours ago
€607
Return
found 13 hours ago
Select American Airlines flight, departing Sun, 26 Apr from Montreal to Seattle, returning Mon, 4 May, priced at €607 found 13 hours ago

Frequently asked questions

How much is a flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Seattle - Tacoma Intl. Airport (SEA)?
Start packing your bags, because round-trip flights from Montréal–Trudeau to SEA start from €413. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Montréal–Trudeau to Sea-Tac Airport?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Montréal–Trudeau to Sea-Tac Airport 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 Pierre Elliott Trudeau Intl. Airport (YUL) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Pierre Elliott Trudeau Intl. Airport (YUL) to Sea-Tac Airport?
The flight distance between YUL (YUL) and Sea-Tac Airport (SEA) is 3,700 kilometres. Listen to your favourite tunes or make a start on the latest bestseller and the trip will zip on by.
Which airlines fly direct from YUL to SEA?
Air Canada (AC) will fly you from Montreal Airport to Seattle - Tacoma Intl. Airport (SEA) comfortably and reliably. You can choose from 17 direct flights every month on this route.
Are Montréal–Trudeau to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Flight prices go up and down like a yo-yo, so it's no sure thing. While last-minute deals between Montréal–Trudeau and Sea-Tac Airport are of course possible, it also makes sense to keep an eye on prices well before you fly. In fact, some air carriers release their prices up to 12 months before the departure date. Expedia is continuously updating the biggest bargains around, so check back often and be ready to grab your seat when the price dips.

Travel information

Origin airport
Pierre Elliott Trudeau Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, American Airlines, Delta, United, WestJet
Return price
€412
Distance
3643 km

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