Cheap Flights from Toronto (YYZ) to Seattle (SEAA)

Compare Toronto Pearson International to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

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Flight deals from Toronto Pearson International to Seattle

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

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

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

Direct flights from Toronto Pearson International to Seattle

Alternative Toronto Pearson International to Seattle routes

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

Toronto to Seattle: Flight information

The things to know before you go.
Cheapest flight found$328
Cheapest month to flyAugust
Average flight time5 hrs, 22 mins
Most popular airlineAir Tahiti Nui
Average flights per week84

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

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Toronto Pearson International to Seattle is $328. 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 Pearson International to Seattle.
Air Tahiti Nui, Alaska Airlines and Hawaiian Airlines fly direct from Toronto Pearson International to Seattle.
As of June 2025, there are 42 flights per week flying from Toronto Pearson International to Seattle.
The cheapest month to fly from Toronto Pearson International to Seattle is usually August.
If you're flying from Toronto Pearson International Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $328.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Toronto Pearson International Airport to Seattle on Wednesday, 13 August 2025.
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 June, the average temperature is usually around 14°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.
Currently, WestJet and Air Canada offer the cheapest flight tickets to Seattle.

Flying from Pearson International Airport (YYZ) to Seattle: what you need to know

  • Take a direct flight from Pearson International Airport to Seattle and you'll be travelling for an average of 4 hours 45 minutes.

  • The timezone in Seattle is UTC-7. The city is three hours behind Toronto, where Pearson International Airport is located.

  • With 14 weekly flights between the two airports, Pearson International Airport (YYZ) to Seattle-Tacoma International Airport (SEA) is the busiest route. Air Canada operates the earliest flight at 08:15. If you prefer to get more out of your day before taking off, the last departure from YYZ to SEA is with Air Canada at 19:20.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. That way, you can comfortably catch your YYZ to Seattle flight.

  • Delays at security and check-in are likely if you're travelling during high season, so allow some extra breathing room. A good rule of thumb for peak times? Get there up to four hours ahead for international flights and at least two hours for domestic departures.

  • Direct Pearson International Airport to Seattle tickets are available for booking. Seattle-Tacoma International Airport (SEA) is where you'll complete your journey.

  • Air Canada is a popular carrier that operates direct flights from Pearson International Airport to Seattle.

  • Located around 19 kilometres from the centre of Toronto, YYZ can be reached in about 25 minutes by car. The journey on public transport takes roughly 50 minutes.

  • Booked an early flight from Pearson International Airport to Seattle? Avoid the hassle of rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these stays near YYZ:

  • When it comes to the on-time performance of Pearson International Airport, 63.97% of flights complete their journey on time.

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

  • $198 is the cheapest price we've found for a one-way Pearson International Airport to Seattle flight. A round-trip ticket right now is $328. Depending on when you want to go and the availability, these fares could change.

  • Book one month before you travel. Pricing trends show that this is the ideal window for finding cheap flights from YYZ to Seattle.

  • Organise your trip for May. That's the best month for landing an incredible deal on Pearson International Airport to Seattle tickets. If you're flexible with your dates, use the 'Whole month' tool to find the cheapest price across each month.

  • There's no need to check back constantly to see if fares have dropped when you create a Price Alert. We'll update you when there's an even bigger deal on cheap flights from YYZ to Seattle.

  • Tailor your flights with filters. Pick your ideal departure and arrival times, total journey duration and airlines. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from Pearson International Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from central Seattle. If you're catching a cab or a ride-share, the drive takes about 20 minutes.

  • Getting there by public transport takes about 55 minutes.

  • The last thing you want is a long journey to your hotel if you're landing late on a flight from Pearson International Airport to Seattle. Book one of these accommodation options near SEA instead:

  • Grab a Seattle-Tacoma International Airport rental car and explore Seattle and beyond with your own set of wheels. Thrifty, Europcar and Budget are popular outlets you can book with here.

  • To get the lowest price, book your ride from Seattle-Tacoma International Airport around one week in advance of your flight from YYZ to Seattle.

Lake Union Sea Plane Base Airport (LKE)

  • The centre of Seattle is about 3 kilometres from Lake Union Sea Plane Base Airport (LKE). After your flight from Pearson International Airport to Seattle has hit the runway and you've made your way to arrivals, expect a drive of around 10 minutes.

  • You can expect the journey to take about 25 minutes on public transport.

  • After stepping off your YYZ to Seattle flight, kick back at a hotel near LKE. These are some comfortable options that'll help you slip into relaxation mode:

Best time to go to Seattle

  • Before scheduling your flights from Pearson International Airport to Seattle, consider which time of year works best for you. High season in Seattle offers a bustling atmosphere and plenty of things to do, while low season brings cheaper hotel deals and smaller crowds.

  • Book a Pearson International Airport to Seattle flight ticket with a departure in August if you want to experience the city during its warmest month. You can expect temperatures to range from 12ºC (54ºF) to 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Search for a cheap ticket from YYZ to Seattle around that time if you want to travel in cooler conditions.

More about Seattle

  • When it comes to looking for somewhere to rest your head, you'll find the best places to stay in Seattle right here. Explore these hotels as soon as you've booked your flight from Pearson International Airport to Seattle:

  • There are so many things to explore in this city it can be tricky to know where to start. LMN Architects, Greyhound: Bus Station and Boeing Radiation Effects Lab are highlights which should be on any good Seattle itinerary.

Explore more of United States

  • Seattle has its own special appeal, but there are so many other corners of United States just waiting to be explored. About 241 kilometres south of Seattle, a trip to Portland will keep you on the go. Start with attractions like Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another favourite stop in United States. No visit is complete without checking out Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

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