Cheap flights from Toronto to Seattle

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Flight deals from Toronto to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Toronto to Seattle? Find the lowest prices on one-way and round-trip tickets right here.

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Find the cheapest month to fly from Toronto to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Toronto to Seattle flights are currently cheapest in June.

Direct flights from Toronto to Seattle

Alternative Toronto to Seattle routes

Looking for the cheapest, fastest or easiest route from Toronto to Seattle? You could fly into the following airports instead.

Toronto to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$318
Cheapest month to flyJune
Average flight time5 hrs, 21 mins
Most popular airlineAir Canada
Average flights per week33

Finding cheap flights from Toronto to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Everett.
The best price we found for a round-trip flight from Toronto to Seattle is C$318. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 22 minutes is the average flight time from Toronto to Seattle.
Air Canada, United and Alaska Airlines fly direct from Toronto to Seattle.
There are 33 flights per week flying from Toronto to Seattle, as of May 2024.
The cheapest month to fly from Toronto to Seattle is usually June.
If you're flying from Toronto, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the center of Seattle. We've found flights to this airport from C$318.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Toronto to Seattle on Monday, June 3, 2024.
Yes – the average flight time is 5 hours and 22 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 12°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
The cheapest airline that flies to Seattle is WestJet, and the cheapest airline that flies to Seattle Boeing Fld Airport is Alaska Airlines.

Top tips for finding a cheap flight from Toronto to Seattle

Finding cheap tickets from Toronto to Seattle is easy with a little flexibility. Use our Whole Month search feature to scan through the calendar for the cheapest dates. You can also set up a Price Alert for your route and let us monitor the fares for you, sending notifications when prices change. If you’d rather skip layovers, select the Direct Flights search to view non-stop options that’ll save you time.

Booking your tickets early often leads to savings, but we can also find you some last-minute deals. In general, January is the best time to schedule your trip from Toronto to Seattle, with the lowest average fares across the board. Keep these strategies in mind to find the best itinerary.

Handy information about Toronto airport

Toronto offers a range of airports catering to different travel needs, from regional flights to international destinations. Waterloo International Airport operates from a single terminal and handles both domestic and seasonal international flights. Those departing from Waterloo have access primarily via car or rideshare options. Buttonville Municipal Airport serves general aviation and flight training with its single terminal and is reached by similar ground transport methods.

Billy Bishop Toronto City Airport, situated on the city’s waterfront, is unique for its pedestrian tunnel link to the mainland and lends itself to business and regional travellers with its focus on short-haul flights. Toronto Pearson International Airport, the largest in Toronto, features two terminals connected by an automated mover and boasts a wealth of transport links, including public transit. Pearson accommodates a sweeping range of airlines and flights from domestic to international. Lastly, John C. Munro Hamilton International Airport, also with a single terminal, is accessible via car or rideshare and is known to serve domestic and some international flights, appealing to leisure and low-cost travellers.

Seattle airport: good to know

Seattle is served by three airports, each catering to different travel needs. Lake Union Airport specializes in general aviation; it operates with a single terminal and typically supports private, corporate, and charter flights focusing on the regional and local segments.

Seattle-Tacoma International, widely known as Sea-Tac, features a central terminal plus a series of concourses. The airport facilitates a seamless flow of both domestic and international passengers and offers a diverse range of transport options including light rail, buses, taxis, and rideshare services. Boeing Field, or King County International Airport, though primarily a hub for general aviation, also accommodates commercial flights. With one passenger terminal, it offers shuttle services, taxis, rideshare options, and car rentals, making it an accessible choice for those travelling domestically and a limited international clientele. Make your flight from Toronto to Seattle as comfortable as possible by familiarizing yourself with each airport’s facilities.

Best time to fly from Toronto to Seattle

The best time to fly to Seattle is during the summer, specifically in July and August when the weather is at its finest, with temperatures ranging comfortably between 13°C and 25°C. These months are perfect for exploring the city and indulging in outdoor activities without the worry of rainfall interrupting your plans. While winter temperatures dip to a cooler range of 2°C to 8°C, the city's proximity to mountain ranges makes it an appealing destination for winter sports lovers. Regardless of the season, packing layers and rain protection is recommended due to Seattle's reputation for unpredictable showers.

Reasons to visit Seattle

When planning your trip to Seattle, check out these activities and attractions the city has to offer. Revel in the excitement of the Seafair Festival, a summer staple that showcases a parade of ships, air show, and fireworks. Visit the Space Needle, where you can enjoy panoramic views of the city and beyond from its observation deck. Pike Place Market offers a plethora of fresh produce and unique crafts, making it a perfect spot for those who appreciate local flavour and artisanal goods. Lastly, don't miss Chihuly Garden and Glass, which exhibits spellbinding glass art in both indoor and outdoor settings.

Add hotel bookings and car hire to your Toronto to Seattle flight

Planning your trip to Seattle is easy and convenient with Skyscanner. Choose from trusted car hire options like Budget, Avis, or Hertz for effortless travel around the city. Among the accommodation choices, Sheraton Grand Seattle, Grand Hyatt Seattle, and Fairmont Olympic Hotel stand out, offering comfort and service for a memorable stay. With Skyscanner, secure your transport and lodging requirements in one place, simplifying your travel preparations.


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.