
Popular airlines from Seattle-Tacoma International Airport (SEA) to Toronto
- WestJet
WestJet
- Alaska Airlines
Alaska Airlines
- Air Canada
Air Canada
- Delta
Delta
- American Airlines
American Airlines
- United
United
- Sun Country Airlines
Sun Country Airlines
- Plan, book, fly with confidence
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Cheap Flights from Seattle (SEA) to Toronto (YTO)
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.










Find the cheapest month to fly from Seattle (SEA) to Toronto (YTO)
July is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Pearson Intl. |
Return price | AU$451 |
Distance | 3288 km |
Your quick guide to flights from Seattle to Toronto
Pick up great flights from Seattle to Toronto
With Expedia, you have your pick of flights a day with 20 airlines covering flights from Seattle to Toronto. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to Toronto that take around hours.
Find cheap flights from Seattle to Toronto
From the great flight deals with prices currently ranging from AU$452 to AU$486, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to Toronto around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Toronto is normally in September.
Reasons to book your flight from Seattle to Toronto with Expedia
Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to Toronto across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Toronto right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.
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Top Routes from Seattle
- Seattle to Newark Liberty Intl. Airport (SEA - EWR)
- Seattle to San Diego (SEA - SAN)
- Seattle to Melbourne (SEA - AVV)
- Seattle to Los Angeles (SEA - LAX)
- Seattle to Miami (SEA - MIA)
- Seattle to New York (SEA - LGA)
- Seattle to Amsterdam (SEA - AMS)
- Seattle to New York (SEA - JFK)
- Seattle to Vancouver (SEA - YVR)
- Seattle to Melbourne (SEA - MEL)
- Seattle to Baltimore (SEA - BWI)
- Seattle to London (SEA - LHR)
Top Routes to Toronto
Top Flight Destinations
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Seattle Paine Field Intl. Airport
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