CA $232 Cheap Flights from Toronto (YYZ) to Seattle (SEA)

View CA $232 flight on Fri, May 8, 2026Opens in a new window

Popular airlines from Toronto Pearson Intl. Airport (YYZ) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Toronto (YYZ) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $232 for one-way flights and CA $350 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, May 23 - Mon, May 25
YYZ
Toronto
SEA
Seattle
CA $350 Roundtrip, found 5 days ago
CA $350
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sat, May 23 from Toronto to Seattle, returning Mon, May 25, priced at CA $350 found 5 days ago
WestJet
Tue, Apr 28 - Wed, May 6
YYZ
Toronto
SEA
Seattle
CA $350 Roundtrip, found 3 days ago
CA $350
Roundtrip
found 3 days ago
Select WestJet flight, departing Tue, Apr 28 from Toronto to Seattle, returning Wed, May 6, priced at CA $350 found 3 days ago
WestJet
Wed, Jun 3 - Wed, Jun 10
YYZ
Toronto
SEA
Seattle
CA $371 Roundtrip, found 1 day ago
CA $371
Roundtrip
found 1 day ago
Select WestJet flight, departing Wed, Jun 3 from Toronto to Seattle, returning Wed, Jun 10, priced at CA $371 found 1 day ago
Air Canada
Wed, May 20 - Wed, May 27
YYZ
Toronto
SEA
Seattle
CA $392 Roundtrip, just found
CA $392
Roundtrip
just found
Select Air Canada flight, departing Wed, May 20 from Toronto to Seattle, returning Wed, May 27, priced at CA $392 just found
Air Canada
Wed, May 20 - Wed, May 27
YYZ
Toronto
SEA
Seattle
CA $392 Roundtrip, just found
CA $392
Roundtrip
just found
Select Air Canada flight, departing Wed, May 20 from Toronto to Seattle, returning Wed, May 27, priced at CA $392 just found
Air Canada
Tue, May 5 - Sat, May 9
YYZ
Toronto
SEA
Seattle
CA $392 Roundtrip, just found
CA $392
Roundtrip
just found
Select Air Canada flight, departing Tue, May 5 from Toronto to Seattle, returning Sat, May 9, priced at CA $392 just found
United
Tue, May 19 - Tue, May 26
YYZ
Toronto
SEA
Seattle
CA $399 Roundtrip, just found
CA $399
Roundtrip
just found
Select United flight, departing Tue, May 19 from Toronto to Seattle, returning Tue, May 26, priced at CA $399 just found
Delta
Wed, May 20 - Wed, May 27
YYZ
Toronto
SEA
Seattle
CA $404 Roundtrip, just found
CA $404
Roundtrip
just found
Select Delta flight, departing Wed, May 20 from Toronto to Seattle, returning Wed, May 27, priced at CA $404 just found
American Airlines
Wed, Jun 3 - Wed, Jun 10
YYZ
Toronto
SEA
Seattle
CA $406 Roundtrip, found 1 day ago
CA $406
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jun 3 from Toronto to Seattle, returning Wed, Jun 10, priced at CA $406 found 1 day ago
WestJet
Wed, Apr 29 - Thu, Apr 30
YYZ
Toronto
SEA
Seattle
CA $409 Roundtrip, found 3 days ago
CA $409
Roundtrip
found 3 days ago
Select WestJet flight, departing Wed, Apr 29 from Toronto to Seattle, returning Thu, Apr 30, priced at CA $409 found 3 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from CA $399
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from CA $399

Find the cheapest month to fly from Toronto (YYZ) to Seattle (SEA)

May is typically the cheapest month to fly

From CA $329 - CA $425 per traveller.

Frequently asked questions

How much is a flight from Toronton Pearson to Sea-Tac Airport?
Round-trip tickets from Toronto Pearson Airport to Seattle - Tacoma Intl. Airport (SEA) start from CA $350. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from YYZ to Seattle - Tacoma Intl. Airport (SEA)?
Most flights can be 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 Toronton Pearson to Sea-Tac Airport that have flexible change policies?
Use our "No change fees" filter to find flexible ticketing options for your flight from YYZ to Sea-Tac Airport. This allows you to lock in a great price in advance and still have the freedom to make changes without any extra fees. Just keep in mind that fare differences may still apply.
How many hours is the flight from Toronto Pearson Airport to Sea-Tac Airport?
Consider bringing your own entertainment (like some downloaded TV shows), as it takes approximately 13 hours and 53 minutes to reach Sea-Tac Airport from Toronto Pearson Airport. A pair of noise-cancelling headphones will be useful too.
How far is the flight from Toronto Pearson Airport to SEA?
It's around 3,300 kilometres from YYZ to SEA, so you'll be strapped into your seat for a while. Keep yourself occupied with things like your e-reader or the latest bestseller.
Which airlines fly direct from YYZ to Seattle - Tacoma Intl. Airport (SEA)?
Alaska Airlines (AS) is one of the preferred choices for travellers jetting between YYZ and Sea-Tac Airport. Choose from the 30 flights it operates on this route each month. Another airline servicing this route is Air Canada (AC). You'll have 30 flights a month to take your pick of.
Are Toronto Pearson Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to score an awesome last-minute deal from Toronton Pearson to SEA, but it's also possible to miss out altogether! As many airlines publish prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a good bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can rest easy knowing you're always getting the latest offers.

Travel information

Origin airport
Pearson Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Delta, Sun Country Airlines, United, WestJet
Roundtrip price
CA $349
Distance
3288 km
Average flight time
2 hours 26 mins

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