Cheap Flights from Seattle to Toronto Pearson International

Compare Seattle to Toronto Pearson International flight deals

Find the cheapest month or even day of the year to fly to Toronto Pearson International

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Flight deals from Seattle to Toronto Pearson International

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

Find the cheapest month to fly from Seattle to Toronto Pearson International

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

Direct flights from Seattle to Toronto Pearson International

Seattle to Toronto Pearson International: Alternative routes

Compare routes from Seattle to Toronto below. You may find an airport to fly into that's cheaper, faster, or easier than Toronto Pearson International.

Seattle to Toronto: Flight information

The things to know before you go.
Cheapest flight foundR 1,919
Cheapest month to flySeptember
Average flight time4 hrs, 41 mins
Most popular airlineAir Tahiti Nui
Average flights per week49

Finding cheap flights from Seattle to Toronto Pearson International: Frequently asked questions

The best price we found for a return flight from Seattle to Toronto Pearson International is R 4,143. 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.
4 hours and 41 minutes is the average flight time from Seattle to Toronto Pearson International.
Air Tahiti Nui, Qatar Airways and Alaska Airlines fly direct from Seattle to Toronto Pearson International.
As of June 2025, there are 49 flights per week flying from Seattle to Toronto Pearson International.
The cheapest month to fly from Seattle to Toronto Pearson International is usually June 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Toronto Pearson International Airport on Sunday, 3 August 2025.
Yes – the average flight time is 4 hours and 41 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 Toronto Pearson International 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 Toronto is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Seattle to Pearson International Airport (YYZ): What you need to know

  • There are a couple of airports you can start your journey from in Seattle. Explore your options leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE) when reserving your flight from Seattle to Pearson International Airport (YYZ).

  • Expect to be in the air for 4 hours 45 minutes. On average, that's the duration of a direct Seattle to Pearson International Airport flight.

  • Pearson International Airport is located in Toronto. The city runs on the UTC-4 timezone and is three hours ahead of Seattle.

  • The most popular route is from Seattle-Tacoma International Airport (SEA) to Pearson International Airport (YYZ), with 14 direct services every week. If you're ready to head out sooner, the earliest flight from SEA to YYZ is the 6am Air Canada option. If a later flight fits your day better, the last departure is at 12:20pm with Air Canada.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Make sure you're at the airport on time to board your flight from Seattle to YYZ.

  • Travelling during a peak time like a bank holiday? Expect longer queues at security and check-in. To give yourself peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) will have you travelling directly to your destination. Nonstop flights from Seattle to Pearson International Airport (YYZ) can be booked from this terminal.

  • You can lock in a direct flight from Seattle to Pearson International Airport with Air Canada. This popular airline operates services from SEA.

  • The preferred choice for passengers flying between SEA and YYZ is Air Canada.

  • With a dependable 91.8% of services arriving on schedule, Air Canada is the top on-time carrier serving this route.

  • Think about adding a stopover to find cheap flights from Seattle to YYZ. Just uncheck 'Direct flights only' when searching for departures from Seattle-Tacoma International Airport (SEA). Take a break from travelling at one of these airports:

    • Minneapolis-St. Paul International Airport (MSP)

    • Vancouver International Airport (YVR)

    • Calgary International Airport (YYC)

  • SEA is around 23 kilometres from central Seattle. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 20 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the travel time to be around 55 minutes.

  • Want a stress-free start to your trip? Stay near Seattle-Tacoma International Airport. Whether you have an early flight from Seattle to Pearson International Airport or prefer not to rush, these hotels have you covered:

  • Seattle-Tacoma International Airport earns top marks for on-time performance. 81.27% of flights that take off from SEA land on time.

Lake Union Sea Plane Base Airport (LKE)

About Pearson International Airport (YYZ)

Getting from Pearson International Airport (YYZ) to central Toronto

  • Pearson International Airport is around 27 kilometres from the centre of Toronto. It takes around 25 minutes or so to drive to the city.

  • If you're travelling by public transport, expect a journey of roughly 50 minutes.

How to find the cheapest flights from Seattle to Pearson International Airport (YYZ)

  • R 1,919 is currently the lowest price for a one-way ticket from Seattle to Pearson International Airport. Return flights start at R 4,143. These prices can change depending on demand.

  • Booking ahead of time is often the key to finding a cheap flight from Seattle to YYZ. Fares tend to rise as seats fill up, so the closer you get to departure, the more you'll likely spend on your ticket.

  • Cheap Seattle to Pearson International Airport tickets are easier to find when your dates are flexible. Use the 'Whole month' tool to compare fares across the month and then choose the cheapest day.

  • Spend less time searching for cheap plane tickets from Seattle to YYZ by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.

  • Find the best deal on a flight from Seattle to Pearson International Airport with the help of the filters. Pick your ideal departure and arrival times, number of stops and airlines. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best.'

The best time to fly from Seattle to Pearson International Airport (YYZ)

  • Picture the kind of break you want when planning the timing of your trip. February is the quietest month to visit Toronto. August is when most people book flights from Seattle to Pearson International Airport (YYZ), which may be ideal if you'd rather travel when it's busy.

  • Before locking in your Seattle to YYZ plane ticket, consider the kind of weather you prefer. July is the warmest month in Toronto, with temperatures ranging from 14ºC (57ºF) to 28ºC (82ºF).

  • January has temperatures of between -12ºC (10ºF) and 1ºC (34ºF). Look for cheap tickets from Seattle to Pearson International Airport around that time if you like cooler conditions.

More about Toronto

  • After booking your flight from Seattle to Pearson International Airport, find a hotel that offers a good mix of location and comfort. Make one of these accommodation options your base for exploring Toronto:

  • Your visit to Toronto should come with a side of sightseeing. Attractions you can't miss include CN Tower, Skypod CN Tower and Royal Ontario Museum.

Explore more of Canada

  • Toronto has its own special appeal, but there are so many other corners of Canada just waiting to be discovered. Around 153 kilometres south-west of Toronto, a visit to London will keep your itinerary busy. Don't miss top attractions like Forks of the Thames River, Falls View Park and Fanshawe Pioneer Village.

  • If there's time to check out another corner of Canada, head for Kingston, roughly 257 kilometres east of Toronto. Fort Henry, Rideau Canal - Jones Falls Defensible Lockmasters House and Kingston Penitentiary are highlights.

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