$91 Cheap Flights from Seattle (SEA) to Toronto (YYZ)

View $91 flight on Wed, Oct 8, 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 $91 for one-way flights and $221 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Oct 29 - Tue, Nov 4
SEA
Seattle
YYZ
Toronto
$221 Roundtrip, found 4 hours ago
$221
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Wed, Oct 29 from Seattle to Toronto, returning Tue, Nov 4, priced at $221 found 4 hours ago
Alaska Airlines
Wed, Dec 10 - Thu, Dec 18
SEA
Seattle
YYZ
Toronto
$221 Roundtrip, found 3 hours ago
$221
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Dec 10 from Seattle to Toronto, returning Thu, Dec 18, priced at $221 found 3 hours ago
Air Canada
Sat, Jan 24 - Wed, Jan 28
SEA
Seattle
YYZ
Toronto
$223 Roundtrip, found 7 hours ago
$223
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Sat, Jan 24 from Seattle to Toronto, returning Wed, Jan 28, priced at $223 found 7 hours ago
Air Canada
Sat, Oct 11 - Wed, Oct 15
SEA
Seattle
YYZ
Toronto
$224 Roundtrip, found 6 hours ago
$224
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Sat, Oct 11 from Seattle to Toronto, returning Wed, Oct 15, priced at $224 found 6 hours ago
United
Wed, Oct 29 - Tue, Nov 4
SEA
Seattle
YYZ
Toronto
$225 Roundtrip, found 4 hours ago
$225
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Oct 29 from Seattle to Toronto, returning Tue, Nov 4, priced at $225 found 4 hours ago
Air Canada
Tue, Oct 28 - Sat, Nov 1
SEA
Seattle
YYZ
Toronto
$226 Roundtrip, found 11 hours ago
$226
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Tue, Oct 28 from Seattle to Toronto, returning Sat, Nov 1, priced at $226 found 11 hours ago
Alaska Airlines
Tue, Oct 7 - Tue, Oct 14
SEA
Seattle
YYZ
Toronto
$227 Roundtrip, just found
$227
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Oct 7 from Seattle to Toronto, returning Tue, Oct 14, priced at $227 just found
Air Canada
Sat, Sep 13 - Sun, Sep 14
SEA
Seattle
YYZ
Toronto
$229 Roundtrip, found 13 hours ago
$229
Roundtrip
found 13 hours ago
Select Air Canada flight, departing Sat, Sep 13 from Seattle to Toronto, returning Sun, Sep 14, priced at $229 found 13 hours ago
WestJet
Sat, Dec 6 - Sun, Dec 7
SEA
Seattle
YYZ
Toronto
$253 Roundtrip, found 14 hours ago
$253
Roundtrip
found 14 hours ago
Select WestJet flight, departing Sat, Dec 6 from Seattle to Toronto, returning Sun, Dec 7, priced at $253 found 14 hours ago
Delta
Tue, Sep 30 - Wed, Oct 1
SEA
Seattle
YYZ
Toronto
$296 Roundtrip, found 13 hours ago
$296
Roundtrip
found 13 hours ago
Select Delta flight, departing Tue, Sep 30 from Seattle to Toronto, returning Wed, Oct 1, priced at $296 found 13 hours ago

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

January is typically the cheapest month to fly

From $225 - $585 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 Billy Bishop Toronto City YTZ. Closest option available. Average driving time to city center is 4 minutes. Flights from $462
YTZ
Billy Bishop Toronto City
Closest
Average driving time to city center4 min
Flights from $462
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
$218
Distance
2055 mi
Average flight time
8 hours 21 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 October. 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 $91 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?
Find cheap return flights from Seattle - Tacoma Intl. Airport (SEA) to Pearson Intl. Airport (YYZ) starting at $271. Grab your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SEA on August 5 2025 and touching down at YYZ. The price was last updated on July 14 2025 and has not changed since.
What is the cheapest month to fly from SEA to YYZ?
The cheapest flights from SEA to YYZ are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 SEA to YYZ?
With prices as low as $110 for a one-way journey from SEA to YYZ, Alaska Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SEA on October 8 2025. Prices were last updated on July 14 2025 and have not changed since.
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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