Cheap flights from Seattle to Toronto Pearson International

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      Compare Seattle to Toronto Pearson International flight deals

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

      Book the best Toronto Pearson International fare with no extra fees

      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 Airport? If you want to travel next month, return fares start from $422. Find the lowest prices on one-way and return tickets right here.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Seattle to Toronto Pearson International found in the last 4 days, and are subject to change and availability.

      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 November.

      Direct flights from Seattle to Toronto Pearson International

      Air Canada
      Alaska Airlines
      Brussels Airlines
      Qatar Airways
      United

      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 found$184
      Cheapest month to flyNovember
      Average flight time4 hrs, 44 mins
      Most popular airlineUnited
      Average flights per week35

      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 $422. 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 44 minutes is the average flight time from Seattle to Toronto Pearson International.
      United, Alaska Airlines and Qatar Airways fly direct from Seattle to Toronto Pearson International.
      As of October 2026, there are 35 flights per week flying from Seattle to Toronto Pearson International.
      The cheapest month to fly from Seattle to Toronto Pearson International is usually November.
      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 Wednesday, 11 November 2026.
      Yes – the average flight time is 4 hours and 44 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 Toronto Pearson International Airport (YYZ): What you need to know

      • Seattle's main base, Seattle-Tacoma International Airport (SEA), is where plenty of awesome adventures begin. Explore your departure options from here for your flight from Seattle to Toronto Pearson International Airport (YYZ).

      • Take off on a direct Seattle to Toronto Pearson International Airport flight and you'll be in the air for around 4 hours 45 minutes.

      • Toronto is three hours ahead of Seattle. Toronto Pearson International Airport is located in Toronto, which runs on the UTC-5 timezone.

      • With 13 direct weekly flights between the two airports, Seattle-Tacoma International Airport (SEA) to Toronto Pearson International Airport (YYZ) is the most popular route. Air Canada operates the earliest flight at 6am. If you prefer to get more out of your day before taking off, the latest departure from SEA to YYZ is with Air Canada at 12:20pm.

      • Give yourself enough time to catch your flight from Seattle to YYZ. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

      • With more travellers during peak months like July, be at your terminal even earlier. Two hours for domestic flights and up to four for international journeys will help you stay ahead of the crowds. Remember things also get busy during major holidays like Christmas.

      Airports in Seattle

      Seattle-Tacoma International Airport (SEA)

      • You can hop on a direct flight from Seattle to Toronto Pearson International Airport (YYZ) departing from Seattle-Tacoma International Airport (SEA).

      • You can book a direct flight from Seattle to Toronto Pearson International Airport with Air Canada. This top carrier operates services from SEA.

      • Most travellers prefer to book seats with Air Canada between SEA and YYZ.

      • Alaska Airlines takes the top spot for on-time performance. An exceptional 93.22% of its departures on this route arrive without delay.

      • Think about adding a stopover to find cheap flights from Seattle to YYZ. Simply uncheck 'Direct flights only' when browsing departures from Seattle-Tacoma International Airport (SEA). Slip in a stop (and skip the high fares) by flying through one of these popular options:

        • Minneapolis-Saint Paul International Airport (MSP)

        • Vancouver International Airport (YVR)

        • Calgary International Airport (YYC)

      • The journey from central Seattle to SEA takes about 35 minutes by public transport. If you drive, ride-share or take a taxi, you'll cover the 23 kilometres in 25 minutes or so, depending on traffic.

      • Want an easy start to your journey? Stay near Seattle-Tacoma International Airport. Whether you're catching an early flight from Seattle to Toronto Pearson International Airport or prefer not to feel hurried, these hotels are just the thing:

      • Seattle-Tacoma International Airport has a strong on-time performance, reducing your chances of a delayed flight. Departures from SEA land on schedule 80% of the time.

      Seattle Paine Field International Airport (PAE)

      • PAE is about 40 kilometres from central Seattle. It'll take you 40 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 1 hour 30 minutes.

      • Want to treat yourself to an extra night away before boarding your Seattle to YYZ flight? Check in to a hotel near Seattle Paine Field International Airport before your adventure officially begins. These stays have a room with your name on it:

      • Seattle Paine Field International Airport is known for its commitment to punctuality. 80% of flights departing here land when expected.

      About Toronto Pearson International Airport (YYZ)

      Getting from Toronto Pearson International Airport (YYZ) to central Toronto

      • Central Toronto is around 27 kilometres from Toronto Pearson International Airport and takes about 30 minutes to reach by car. See what your options are for heading into the city, whether that's with a taxi, car hire or ride-share.

      • If you're taking public transport, expect a journey time of about 25 minutes.

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

      • $184 is currently the best price for a one-way ticket from Seattle to Toronto Pearson International Airport. A return flight starts from $422. These prices may change depending on demand and availability.

      • To find cheap flights from Seattle to YYZ, book in advance. Airlines generally offer the most competitive fares when tickets first go on sale.

      • If you can be flexible with your travel dates, use the 'Whole month' search tool. It'll give you the lowest price across each month when searching for your Seattle to Toronto Pearson International Airport ticket.

      • Never miss a deal on plane tickets from Seattle to YYZ by setting up a Price Alert. We'll send you an email or push notification on the app when a lower fare pops up.

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

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

      • July is when most people book flights from Seattle to Toronto Pearson International Airport (YYZ). Plan your visit to Toronto in January for a more laid-back experience.

      • The warmest month in Toronto is July, with temperatures ranging between 15ºC (59ºF) and 28ºC (82ºF). Lock in your Seattle to YYZ plane ticket then if that's your ideal forecast.

      • If you'd rather travel in cooler conditions, look for a cheap ticket from Seattle to Toronto Pearson International Airport in February when temperatures are between -15ºC (5ºF) and 3ºC (37ºF).

      More about Toronto

      • After booking your flight from Seattle to Toronto 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 won't be complete without checking out the sights. Leading attractions you can't miss include CN Tower, The Top CN Tower and Royal Ontario Museum.

      Explore more of Canada

      • Toronto is always a good idea, but there are so many other parts of Canada you should also see. About 153 kilometres southwest of Toronto, a trip to London will fill your itinerary to the brim. Start with attractions like Forks of the Thames River, Fanshawe Pioneer Village and Storybook Gardens.

      • Around 257 kilometres east of Toronto, Kingston is another essential stop in Canada. Experience major highlights starting with Fort Henry, Rideau Canal - Jones Falls Defensible Lockmasters House and Kingston Penitentiary.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.