$109 Cheap Flights from Seattle (SEA) to Toronto (YYZ)

View $109 flight on Sun, Dec 14, 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 $109 for one-way flights and $232 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
$232 Roundtrip, found 8 hours ago
$232
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Wed, Nov 12 from Seattle to Toronto, returning Wed, Nov 19, priced at $232 found 8 hours ago
Air Canada
Tue, Nov 11 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
$233 Roundtrip, found 9 hours ago
$233
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Tue, Nov 11 from Seattle to Toronto, returning Wed, Nov 19, priced at $233 found 9 hours ago
Air Canada
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
$237 Roundtrip, found 8 hours ago
$237
Roundtrip
found 8 hours ago
Select Air Canada flight, departing Wed, Nov 12 from Seattle to Toronto, returning Wed, Nov 19, priced at $237 found 8 hours ago
Air Canada
Tue, Nov 11 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
$238 Roundtrip, found 9 hours ago
$238
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Tue, Nov 11 from Seattle to Toronto, returning Wed, Nov 19, priced at $238 found 9 hours ago
Air Canada
Tue, Oct 21 - Sat, Oct 25
SEA
Seattle
YYZ
Toronto
$240 Roundtrip, found 3 hours ago
$240
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Tue, Oct 21 from Seattle to Toronto, returning Sat, Oct 25, priced at $240 found 3 hours ago
United
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
$241 Roundtrip, found 8 hours ago
$241
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 12 from Seattle to Toronto, returning Wed, Nov 19, priced at $241 found 8 hours ago
Air Canada
Tue, Nov 11 - Wed, Nov 19
SEA
Seattle
YYZ
Toronto
$244 Roundtrip, found 9 hours ago
$244
Roundtrip
found 9 hours ago
Select Air Canada flight, departing Tue, Nov 11 from Seattle to Toronto, returning Wed, Nov 19, priced at $244 found 9 hours ago
Alaska Airlines
Tue, Nov 11 - Fri, Nov 21
SEA
Seattle
YYZ
Toronto
$245 Roundtrip, found 5 hours ago
$245
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Nov 11 from Seattle to Toronto, returning Fri, Nov 21, priced at $245 found 5 hours ago
WestJet
Tue, Oct 21 - Sat, Oct 25
SEA
Seattle
YYZ
Toronto
$267 Roundtrip, found 3 hours ago
$267
Roundtrip
found 3 hours ago
Select WestJet flight, departing Tue, Oct 21 from Seattle to Toronto, returning Sat, Oct 25, priced at $267 found 3 hours ago
Delta
Tue, Oct 21 - Wed, Oct 22
SEA
Seattle
YYZ
Toronto
$309 Roundtrip, found 1 hour ago
$309
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Oct 21 from Seattle to Toronto, returning Wed, Oct 22, priced at $309 found 1 hour ago

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

January is typically the cheapest month to fly

From $225 - $559 per traveler.

Graph displaying average flight prices per month

Alternative airports near Toronto

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

Select flight to Pearson Intl. YYZ. Cheapest option available. Average driving time to city center is 22 minutes. Flights from $567
YYZ
Pearson Intl.
Cheapest
Average driving time to city center22 min
Flights from $567
Flights from Seattle (SEA) to Toronto (YYZ)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Pearson Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Delta, United, WestJet
Roundtrip price
$231
Distance
2055 mi
Average flight time
7 hours 42 mins

Seattle to Toronto Flights

The cheapest times to fly from Seattle to Toronto

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Toronto are during the month of November. You can find some of the cheapest flights from Seattle to Toronto with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Toronto

Sunday is one of the best days to book for cheap flights from Seattle to Toronto: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Toronto

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Toronto in 2025. You can also book with separate airlines for your outbound and return journeys, from $109 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Toronto flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Toronto airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) cost?
Grab a cheap one-way flight from $109 or cheap return flight from $232 from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
The cheapest month to fly from SEA to YYZ is November, when demand is low. Off-peak months are typically when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
Fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) on an Alaska Airlines flight.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
The cheapest airline to offer flights between Seattle - Tacoma Intl. Airport (SEA) and Pearson Intl. Airport (YYZ) will vary based on when you plan to fly. Alaska Airlines and Air Canada are just some good options offering well-priced fares. Use Expedia's filters to compare airlines in one place and find the right SEA to YYZ flight that fits your budget.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
With, on average, 2 nonstop flights departing from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) daily, you'll be cruising above the clouds before you know it.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
The 6 AM departures from SEA to YYZ are the most sought after. They can also be more expensive. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from SEA to YYZ?
Friday offers the most flights from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ). Consider jetting off on this day and you'll have the best chance of finding a departure that works with your plans.
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
The first flight of the day taking off from Seattle - Tacoma Intl. Airport (SEA) is at around 6:05AM UTC-8. Board this plane and you'll reach Pearson Intl. Airport (YYZ) at approximately 1:50PM UTC-5. The entire trip takes 4h 45m.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
Typically, it takes 4 hours and 43 minutes to fly the 2,100 mi from SEA to YYZ.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Toronto from Seattle - Tacoma Intl. Airport (SEA)?
Browse your flight options from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ). This is the only airport in Toronto you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) last-minute?
Waiting until right before your break to book a flight from SEA to YYZ generally means paying more. Although you may find some last-minute deals, there's no guarantee. Allow some flexibility in your schedule to boost your chances of getting a bargain.
Is it cheaper to book a SEA to YYZ flight and hotel package?
You'll generally save money by securing a SEA to YYZ flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ)?
If you reserved your SEA to YYZ flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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