S$149 Cheap Flights from Seattle to Toronto

View S$149 flight on Sat, 20 Sep, 2025Opens in a new window

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

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Cheap Flights from Seattle to Toronto (SEA-YYZ)

Prices were available within the past 7 days and start at S$149 for one-way flights and S$369 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, 20 Sep - Mon, 22 Sep
SEA
Seattle
YYZ
Toronto
S$369 Return, found 1 day ago
S$369
Return
found 1 day ago
Select Air Canada flight, departing Sat, 20 Sep from Seattle to Toronto, returning Mon, 22 Sep, priced at S$369 found 1 day ago
United
Wed, 1 Oct - Wed, 8 Oct
SEA
Seattle
YYZ
Toronto
S$374 Return, found 6 days ago
S$374
Return
found 6 days ago
Select United flight, departing Wed, 1 Oct from Seattle to Toronto, returning Wed, 8 Oct, priced at S$374 found 6 days ago
Air Canada
Sat, 20 Sep - Mon, 22 Sep
SEA
Seattle
YYZ
Toronto
S$376 Return, found 1 day ago
S$376
Return
found 1 day ago
Select Air Canada flight, departing Sat, 20 Sep from Seattle to Toronto, returning Mon, 22 Sep, priced at S$376 found 1 day ago
Air Canada
Wed, 1 Oct - Wed, 8 Oct
SEA
Seattle
YYZ
Toronto
S$381 Return, found 6 days ago
S$381
Return
found 6 days ago
Select Air Canada flight, departing Wed, 1 Oct from Seattle to Toronto, returning Wed, 8 Oct, priced at S$381 found 6 days ago
Delta
Wed, 1 Oct - Wed, 8 Oct
SEA
Seattle
YYZ
Toronto
S$382 Return, found 6 days ago
S$382
Return
found 6 days ago
Select Delta flight, departing Wed, 1 Oct from Seattle to Toronto, returning Wed, 8 Oct, priced at S$382 found 6 days ago
Delta
Wed, 1 Oct - Wed, 8 Oct
SEA
Seattle
YYZ
Toronto
S$382 Return, found 6 days ago
S$382
Return
found 6 days ago
Select Delta flight, departing Wed, 1 Oct from Seattle to Toronto, returning Wed, 8 Oct, priced at S$382 found 6 days ago
American Airlines
Sat, 20 Sep - Mon, 22 Sep
SEA
Seattle
YYZ
Toronto
S$383 Return, found 1 day ago
S$383
Return
found 1 day ago
Select American Airlines flight, departing Sat, 20 Sep from Seattle to Toronto, returning Mon, 22 Sep, priced at S$383 found 1 day ago
United
Thu, 16 Oct - Wed, 22 Oct
SEA
Seattle
YYZ
Toronto
S$387 Return, found 3 days ago
S$387
Return
found 3 days ago
Select United flight, departing Thu, 16 Oct from Seattle to Toronto, returning Wed, 22 Oct, priced at S$387 found 3 days ago
United
Wed, 1 Oct - Wed, 8 Oct
SEA
Seattle
YYZ
Toronto
S$387 Return, found 6 days ago
S$387
Return
found 6 days ago
Select United flight, departing Wed, 1 Oct from Seattle to Toronto, returning Wed, 8 Oct, priced at S$387 found 6 days ago
WestJet
Wed, 1 Oct - Wed, 8 Oct
SEA
Seattle
YYZ
Toronto
S$389 Return, found 6 days ago
S$389
Return
found 6 days ago
Select WestJet flight, departing Wed, 1 Oct from Seattle to Toronto, returning Wed, 8 Oct, priced at S$389 found 6 days ago

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

January is typically the cheapest month to fly

From S$289 - S$723 per traveller.

Graph displaying average flight prices per month

Seattle to Toronto route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Pearson Intl.
Airlines serving
Air Canada, American Airlines, Delta, United, WestJet
Return price
S$369
Distance
3288 km
Average flight time
7 hours 42 mins

Flights from Seattle to Toronto

There are several airlines that operate frequent flights from Seattle (SEA) to Toronto (YYZ) including

The earliest flight leaves Seattle Tacoma Intl. Airport at 06:30 and arrives at Pearson Intl. Airport at 14:02. The last flight of the day departs Seattle at 11:10 and arrives at Toronto at 18:45.

The flight distance from Seattle to Toronto is about 3324 km, the shortest flight is 04 hours 31 minutes with WestJet.

Expedia lets you search across the largest number of airlines and Toronto flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Seattle Toronto flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle to Toronto trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Toronto flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Seattle to Toronto with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from SEA to Toronton Pearson?
If you're travelling from Sea-Tac Airport to Toronton Pearson, round-trip journeys start from S$369. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't hang around. Book now and save yourself both money and time. 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-Tac Airport to Toronton Pearson?
This varies between air carriers, as each has its own terms and conditions. Visit the Customer Service Portal, where you'll find instructions on how to cancel your flight online.
How do I find cheap flights from SEA to Toronton Pearson 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 Pearson Intl. Airport (YYZ) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to YYZ?
Around 3,300 kilometres separates SeaTac and Mississauga, so pack something to keep you busy for a couple of hours. That novel you've yet to start will do the trick.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Toronto Pearson Airport?
Check out Air Canada (AC) if you want to fly straight from Sea-Tac Airport to Toronton Pearson. This popular carrier offers 30 flights monthly, so you're sure to find one that suits your schedule.
Are Seattle - Tacoma Intl. Airport (SEA) to Toronto Pearson Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) at the last minute could save you some serious cash. However, it could end up costing a great deal more! If you'd rather err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

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