$606 Cheap Flights from Toronto (YYZ) to Seattle (BFI)

View $606 flight on Fri, Jul 18, 2025Opens in a new window

Popular airlines from Toronto Pearson Intl. Airport (YYZ) to Seattle, WA (BFI-Boeing Field)

Cheap Flights from Toronto to Seattle (YYZ-BFI)

Prices were available within the past 7 days and start at $606 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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 center is 20 minutes. Flights from $347
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $347
Flights from Toronto (YYZ) to Seattle (BFI)
Origin airport
Pearson Intl.
Destination airport
Boeing Field
Distance
2054 mi

Toronto to Seattle Flights

The cheapest times to fly from Toronto to Seattle

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 Toronto to Seattle are during the month of . You can find some of the cheapest flights from Toronto to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Toronto to Seattle

Sunday is one of the best days to book for cheap flights from Toronto to Seattle: 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 Toronto to Seattle

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 Toronto to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $606 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 Toronto to Seattle 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 Toronto to Seattle 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 Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI) cost?
Discover the latest flight deals from YYZ to BFI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from YYZ to BFI?
The cheapest flights from YYZ to BFI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from YYZ to BFI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from YYZ to BFI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI)?
There aren't any daily direct flights available from Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from YYZ to BFI?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI)?
To avoid possible delays on the Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI) route, fly before 3 PM. Flights after this time 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 Seattle from Pearson Intl. Airport (YYZ)?
If you're traveling on a direct flight from Pearson Intl. Airport (YYZ) to Seattle, Seattle - Tacoma Intl. Airport (SEA) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI) last-minute?
Booking your ticket from YYZ to BFI shortly before your trip is typically more expensive. However, if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a YYZ to BFI flight and hotel package?
Compared with arranging hotels and flights separately, booking a YYZ to BFI flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place takes the hassle out of travel planning. Just pick your flights and choose from our wide range of stays, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Pearson Intl. Airport (YYZ) to Boeing Field Airport (BFI)?
In most cases, you're able to reschedule or cancel your YYZ to BFI flight. However, there may be additional charges, especially if you booked over 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.