
Popular airlines from Seattle-Tacoma International Airport (SEA) to Trudeau International Airport (YUL)
- WestJet
WestJet
- American Airlines
American Airlines
- Delta
Delta
- Air Canada
Air Canada
- United
United
- Plan, book, fly with confidence
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Cheap flights from Seattle (SEA) to Montreal (YUL)
Prices were available within the past 7 days and start at CA $236 for one-way flights and CA $555 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Seattle (SEA) to Montreal (YUL)
June is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Pierre Elliott Trudeau Intl. |
Airlines serving | Air Canada, American Airlines, Delta, United, WestJet |
Roundtrip price | CA $554 |
Distance | 3643 km |
Average flight time | 5 hours 9 mins |
Seattle to Montreal Flights
The easy way to book your flights from Seattle to Montreal
With Expedia, it’s simple to find and book flights to Montreal from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Pierre Elliott Trudeau Intl., too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Montreal today, tomorrow, or this week.
Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Pierre Elliott Trudeau Intl., YUL
Sort your search results by price to find great deals on your flight from Seattle to Montreal—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Montreal from Seattle currently is just CA $555 rising to CA $586.
Here are more money-saving tips:
- Fly in September when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Montreal
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Montreal from Seattle
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Montreal with Expedia today.
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Top Routes from Seattle
- Seattle to Mumbai (SEA - BOM)
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- Seattle to Delhi (SEA - DEL)
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- Seattle to Vancouver (SEA - YVR)
Top Routes to Montreal
- Calgary to Montreal (YYC - YUL)
- Casablanca to Montreal (CMN - YUL)
- Saskatoon to Montreal (YXE - YUL)
- Fort Lauderdale to Montreal (FLL - YUL)
- Paris to Montreal (CDG - YUL)
- Winnipeg to Montreal (YWG - YUL)
- Halifax to Montreal (YHZ - YUL)
- Victoria to Montreal (YYJ - YUL)
- Tunis to Montreal (TUN - YUL)
- Vancouver to Montreal (YVR - YUL)
- Kitchener to Montreal (YKF - YUL)
- Beirut to Montreal (BEY - YUL)
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Seattle Paine Field Intl. Airport
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