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Toronto Pearson International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from €146 and round-trip from €234. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        YYZ 6:45 PM
        5h 19m
        Nonstop
        SEA 9:04 PM
        Toronto - Seattle | Thu, Oct 22 | Air Canada
        SEA 7:45 AM
        4h 40m
        Nonstop
        YYZ 3:25 PM
        Seattle - Toronto | Wed, Oct 28 | Air Canada
        €364 €410
        11% off
        11% off
        €410 €364
      • YYZ 6:45 PM
        5h 19m
        Nonstop
        SEA 9:04 PM
        Toronto - Seattle | Wed, Oct 14 | Air Canada
        SEA 8:00 AM
        4h 50m
        Nonstop
        YYZ 3:50 PM
        Seattle - Toronto | Wed, Oct 21 | Air Canada
        €373 €410
        9% off
        9% off
        €410 €373
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Sun, Oct 25 | WestJet
        SEA 10:30 AM
        9h 15m
        1 stop
        YYZ 10:45 PM
        Seattle - Toronto | Tue, Oct 27 | WestJet
        €234 €410
        43% off
        43% off
        €410 €234
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Wed, Oct 14 | WestJet
        SEA 7:35 PM
        8h 20m
        1 stop
        YYZ 6:55 AM
        Seattle - Toronto | Fri, Oct 16 | WestJet
        €237
        42% off
        €410 €237
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Fri, Oct 16 | WestJet
        SEA 10:30 AM
        7h 45m
        1 stop
        YYZ 9:15 PM
        Seattle - Toronto | Thu, Oct 22 | WestJet
        €249
        39% off
        €410 €249
      • YYZ 1:30 PM
        8h 15m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Fri, Oct 23 | WestJet
        SEA 7:35 PM
        8h 20m
        1 stop
        YYZ 6:55 AM
        Seattle - Toronto | Mon, Oct 26 | WestJet
        €252
        39% off
        €410 €252
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Sat, Oct 17 | WestJet
        SEA 10:30 AM
        9h 15m
        1 stop
        YYZ 10:45 PM
        Seattle - Toronto | Mon, Oct 19 | WestJet
        €254
        38% off
        €410 €254
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Sun, Oct 11 | WestJet
        SEA 7:35 PM
        7h 10m
        1 stop
        YYZ 5:45 AM
        Seattle - Toronto | Wed, Oct 14 | WestJet
        €257
        37% off
        €410 €257
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Fri, Nov 20 | WestJet
        SEA 2:30 PM
        11h 30m
        1 stop
        YYZ 5:00 AM
        Seattle - Toronto | Fri, Nov 27 | WestJet
        €279
        32% off
        €410 €279
      • YYZ 10:25 PM
        23h 20m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Thu, Oct 15 | WestJet
        SEA 10:30 AM
        9h 15m
        1 stop
        YYZ 10:45 PM
        Seattle - Toronto | Wed, Oct 21 | WestJet
        €280
        32% off
        €410 €280
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Sat, Dec 5 | WestJet
        SEA 2:30 PM
        17h 25m
        1 stop
        YYZ 10:55 AM
        Seattle - Toronto | Wed, Dec 9 | WestJet
        €280
        32% off
        €410 €280
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Fri, Nov 13 | WestJet
        SEA 2:30 PM
        19h 35m
        1 stop
        YYZ 1:05 PM
        Seattle - Toronto | Sun, Nov 15 | WestJet
        €286
        30% off
        €410 €286
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Wed, Oct 21 | WestJet
        SEA 7:35 PM
        7h 10m
        1 stop
        YYZ 5:45 AM
        Seattle - Toronto | Mon, Oct 26 | WestJet
        €292
        28% off
        €410 €292
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Wed, Nov 11 | WestJet
        SEA 2:30 PM
        19h 35m
        1 stop
        YYZ 1:05 PM
        Seattle - Toronto | Sun, Nov 15 | WestJet
        €293
        28% off
        €410 €293
      • YTO 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Toronto - Seattle | Sun, Oct 11 | Normal Airline
        SEA 3:00 PM
        6h
        Nonstop
        YTO 4:00 PM
        Seattle - Toronto | Tue, Oct 13 | Normal Airline
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      • Cheapest nonstop
        YYZ 6:25 PM
        5h 29m
        Nonstop
        SEA 8:54 PM
        Toronto - Seattle | Wed, Nov 4 | Air Canada
        €184 €204
        10% off
        10% off
        €204 €184
      • YYZ 6:25 PM
        5h 34m
        Nonstop
        SEA 8:59 PM
        Toronto - Seattle | Fri, Nov 20 | Air Canada
        €185 €204
        9% off
        9% off
        €204 €185
      • YYZ 6:30 AM
        9h 50m
        1 stop
        SEA 1:20 PM
        Toronto - Seattle | Sat, Dec 5 | WestJet
        €146 €204
        28% off
        28% off
        €204 €146
      • YYZ 7:45 AM
        8h 35m
        1 stop
        SEA 1:20 PM
        Toronto - Seattle | Fri, Nov 20 | WestJet
        €147
        28% off
        €204 €147
      • YYZ 6:30 AM
        9h 50m
        1 stop
        SEA 1:20 PM
        Toronto - Seattle | Thu, Nov 12 | WestJet
        €147
        28% off
        €204 €147
      • YYZ 7:45 AM
        8h 35m
        1 stop
        SEA 1:20 PM
        Toronto - Seattle | Fri, Nov 27 | WestJet
        €147
        28% off
        €204 €147
      • YYZ 6:30 AM
        9h 50m
        1 stop
        SEA 1:20 PM
        Toronto - Seattle | Wed, Dec 2 | WestJet
        €147
        28% off
        €204 €147
      • YYZ 6:30 AM
        10h 8m
        1 stop
        SEA 1:38 PM
        Toronto - Seattle | Tue, Nov 24 | WestJet
        €147
        28% off
        €204 €147
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Fri, Dec 4 | WestJet
        €149
        27% off
        €204 €149
      • YYZ 6:30 AM
        9h 50m
        1 stop
        SEA 1:20 PM
        Toronto - Seattle | Mon, Nov 23 | WestJet
        €149
        27% off
        €204 €149
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Mon, Oct 26 | WestJet
        €149
        27% off
        €204 €149
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Thu, Nov 26 | WestJet
        €150
        26% off
        €204 €150
      • YYZ 7:30 AM
        9h 10m
        1 stop
        SEA 1:40 PM
        Toronto - Seattle | Sun, Nov 22 | WestJet
        €152
        25% off
        €204 €152
      • YYZ 12:00 PM
        9h 45m
        1 stop
        SEA 6:45 PM
        Toronto - Seattle | Fri, Oct 16 | WestJet
        €157
        23% off
        €204 €157
      • YTO 1:00 PM
        17h 25m
        1 stop
        SEA 2:00 PM
        Toronto - Seattle | Sun, Oct 11 | Normal Airline
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Flight fares from Toronto Pearson International Airport to Seattle-Tacoma International Airport are based on average airline prices for the next 3 months, according to Trip.com’s latest data.

Trip.com Price Insights: Flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport

Which month has the lowest one-way flight price from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

The data is based on the average one-way flight prices on Trip.com for flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport across different months over the past 12 months.

Based on Trip.com data from the past 12 months, if you’re looking for low one-way flight fares from Toronto Pearson International Airport to Seattle-Tacoma International Airport, the best time to book is in March, with an average price of €166. Try to avoid July, when prices are highest, averaging around €317.

€317
€242
€166
€91
    Cheapest
  • €226
    Oct
  • €201
    Nov
  • €268
    Dec
  • €221
    Jan
  • €197
    Feb
  • €166
    Mar
  • €204
    Apr
  • €250
    May
  • €218
    Jun
  • €317
    Jul
  • €315
    Aug
  • €230
    Sep

Which month is the cheapest for round-trip flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

The data is based on the average round-trip flight prices on Trip.com for flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport across different months over the past 12 months.

Based on Trip.com data from the past 12 months, January is usually the cheapest month to find flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport, with an average price of €191. In contrast, June is typically the most expensive month, with average prices reaching €410.

€410
€301
€191
€82
    Cheapest
  • €265
    Oct
  • €281
    Nov
  • €293
    Dec
  • €191
    Jan
  • €237
    Feb
  • €216
    Mar
  • €314
    Apr
  • €339
    May
  • €410
    Jun
  • €334
    Jul
  • €395
    Aug
  • €397
    Sep

What is the cheapest day of the week to fly from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

The data is based on the average flight prices on Trip.com from Toronto Pearson International Airport to Seattle-Tacoma International Airport across different days of the week over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to depart from Toronto Pearson International Airport to Seattle-Tacoma International Airport is usually Wednesday, with average fares typically lower than other days. Try to avoid departing on Sunday, as prices are usually the highest on that day.

€316
€256
€196
€136
    Cheapest
  • €243
    Mon
  • €209
    Tue
  • €196
    Wed
  • €207
    Thu
  • €233
    Fri
  • €264
    Sat
  • €316
    Sun

Which airline offers the cheapest flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from Toronto Pearson International Airport to Seattle-Tacoma International Airport is WestJet (from €146) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

WestJet
From €146
Air Canada
From €175
Apg Airlines
From €186
Delta Air Lines
From €189
Air Transat
From €189
United Airlines
From €196
American Airlines
From €206
Alaska Airlines
From €208
Porter Airlines
From €232
Flair Airlines
From €238

Find more flights and airlines

What is the flight schedule from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

Check the schedule for flights from Toronto to Seattle and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. WS629

    Toronto Pearson International Airport

    8:00 AM

    YYZ

    4h 20m

    Nonstop

    10:20 AM

    YYC

    S M T W T F S
    Search

  2. WS1552

    Calgary International Airport

    5:50 PM

    YYC

    1h 55m

    Nonstop

    6:45 PM

    SEA

    S M T W T F S

  3. WS639

    Toronto Pearson International Airport

    12:00 PM

    YYZ

    4h 20m

    Nonstop

    2:20 PM

    YYC

    S M T W T F S
    Search

  4. WS1552

    Calgary International Airport

    5:50 PM

    YYC

    1h 55m

    Nonstop

    6:45 PM

    SEA

    S M T W T F S

  5. WS627

    Toronto Pearson International Airport

    6:15 AM

    YYZ

    4h 20m

    Nonstop

    8:35 AM

    YYC

    S M T W T F S
    Search

  6. WS1552

    Calgary International Airport

    5:50 PM

    YYC

    1h 55m

    Nonstop

    6:45 PM

    SEA

    S M T W T F S

  7. WS659

    Toronto Pearson International Airport

    10:25 PM

    YYZ

    4h 19m

    Nonstop

    12:44 AM

    YYC

    S M T W T F S
    Search

  8. WS1554

    Calgary International Airport

    8:45 AM

    YYC

    1h 55m

    Nonstop

    9:40 AM

    SEA

    S M T W T F S

  9. PD653

    Toronto Pearson International Airport

    11:25 AM

    YYZ

    5h 3m

    Nonstop

    1:28 PM

    LAS

    S M T W T F S
    Search

  10. F92407

    Harry Reid International Airport

    8:05 AM

    LAS

    2h 54m

    Nonstop

    10:59 AM

    SEA

    S - - W T - S

  11. WS641

    Toronto Pearson International Airport

    1:30 PM

    YYZ

    4h 20m

    Nonstop

    3:50 PM

    YYC

    S M T W T F S
    Search

  12. WS1552

    Calgary International Airport

    5:50 PM

    YYC

    1h 55m

    Nonstop

    6:45 PM

    SEA

    S M T W T F S
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About Toronto Pearson International Airport and Seattle-Tacoma International Airport

Learn about Toronto Pearson International Airport (YYZ) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 3,311.13 km
Cheapest one-way ticket price €146
Cheapest return ticket price €234

FAQs for Toronto Pearson International Airport to Seattle-Tacoma International Airport Flights

  • How long is the flight from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

    Toronto Pearson International Airport to Seattle-Tacoma International Airport takes about 4 hours 55 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Toronto Pearson International Airport (YYZ) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Toronto Pearson International Airport to Seattle-Tacoma International Airport departs at 16:55, and the last departs at 18:45, with about 2 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Toronto Pearson International Airport (YYZ) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around €426 in October, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • United Airlines is a very popular airline operating an average of 414 flights per month.
  • One-way flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport currently start from €146, and round-trip fares start from €234. The current lowest fare is a WestJet flight departing on Sat, Dec 5; prices may vary depending on availability.
  • Yes. Air Canada and Alaska Airlines operate direct flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport, with an average flight time of 4 hours 49 minutes, and around 14 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Toronto Pearson International Airport to Seattle-Tacoma International Airport is €327. Prices may vary depending on the departure date, airline, and availability.
  • Toronto Pearson International Airport to Seattle-Tacoma International Airport operates around 14 weekly flights, mainly by Air Canada and Alaska Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Toronto Pearson International Airport and Seattle-Tacoma International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before payment. Charges for checked baggage, onboard meals, Wi-Fi, and other optional services may also appear in the flight cards where applicable.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and for many routes the data may refresh in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.