₩155,500 Cheap Flights from Seattle (SEA) to Toronto (YYZ)

View ₩155,500 flight on Sat, Nov 15, 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle to Toronto (SEA-YYZ)

Prices were available within the past 7 days and start at ₩155,500 for one-way flights and ₩360,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, Nov 15 - Tue, Nov 18
SEA
Seattle
YYZ
Toronto
₩360,400 Roundtrip, found 2 days ago
₩360,400
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Nov 15 from Seattle to Toronto, returning Tue, Nov 18, priced at ₩360,400 found 2 days ago
United
Sat, Nov 15 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
₩362,000 Roundtrip, found 2 days ago
₩362,000
Roundtrip
found 2 days ago
Select United flight, departing Sat, Nov 15 from Seattle to Toronto, returning Wed, Nov 19, priced at ₩362,000 found 2 days ago
Air Canada
Sat, Nov 15 - Tue, Nov 18
SEA
Seattle
YYZ
Toronto
₩368,200 Roundtrip, found 2 days ago
₩368,200
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Nov 15 from Seattle to Toronto, returning Tue, Nov 18, priced at ₩368,200 found 2 days ago
United
Sat, Jan 17 - Sun, Jan 25
SEA
Seattle
YYZ
Toronto
₩376,200 Roundtrip, found 4 days ago
₩376,200
Roundtrip
found 4 days ago
Select United flight, departing Sat, Jan 17 from Seattle to Toronto, returning Sun, Jan 25, priced at ₩376,200 found 4 days ago
Air Canada
Sat, Nov 15 - Tue, Nov 18
SEA
Seattle
YYZ
Toronto
₩381,100 Roundtrip, found 2 days ago
₩381,100
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Nov 15 from Seattle to Toronto, returning Tue, Nov 18, priced at ₩381,100 found 2 days ago
Delta
Sat, Nov 15 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
₩382,800 Roundtrip, found 2 days ago
₩382,800
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 15 from Seattle to Toronto, returning Wed, Nov 19, priced at ₩382,800 found 2 days ago
Air Canada
Sat, Nov 15 - Tue, Nov 18
SEA
Seattle
YYZ
Toronto
₩384,000 Roundtrip, found 2 days ago
₩384,000
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Nov 15 from Seattle to Toronto, returning Tue, Nov 18, priced at ₩384,000 found 2 days ago
Air Canada
Sat, Nov 15 - Tue, Nov 18
SEA
Seattle
YYZ
Toronto
₩386,900 Roundtrip, found 2 days ago
₩386,900
Roundtrip
found 2 days ago
Select Air Canada flight, departing Sat, Nov 15 from Seattle to Toronto, returning Tue, Nov 18, priced at ₩386,900 found 2 days ago
WestJet
Mon, Oct 20 - Wed, Oct 22
SEA
Seattle
YYZ
Toronto
₩406,800 Roundtrip, found 4 days ago
₩406,800
Roundtrip
found 4 days ago
Select WestJet flight, departing Mon, Oct 20 from Seattle to Toronto, returning Wed, Oct 22, priced at ₩406,800 found 4 days ago
American Airlines
Sat, Jan 17 - Sun, Jan 25
SEA
Seattle
YYZ
Toronto
₩541,500 Roundtrip, found 4 days ago
₩541,500
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Jan 17 from Seattle to Toronto, returning Sun, Jan 25, priced at ₩541,500 found 4 days ago

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

January is typically the cheapest month to fly

From ₩311,649 - ₩747,036 per traveler.

Frequently asked questions

How much is a flight from SEA to Toronton Pearson?
If you're traveling from Sea-Tac Airport to Toronton Pearson, round-trip journeys start from ₩360,400. 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 kilometers 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.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Pearson Intl.
Roundtrip price
₩360,400
Distance
3288 km
Average flight time
7 hours 44 mins

Book with confidence

Book with confidence

Seattle to Toronto Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to Toronto will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Toronto.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to YYZ flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to YYZ with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Seattle to Toronto Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.