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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 €147 and round-trip from €235. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        YYZ 18:45
        5h 19m
        Direct
        SEA 21:04
        Toronto - Seattle | Fri, Oct 23 | Air Canada
        SEA 07:45
        4h 40m
        Direct
        YYZ 15:25
        Seattle - Toronto | Thu, Oct 29 | Air Canada
        €365 €440
        17% off
        17% off
        €440 €365
      • YYZ 18:45
        5h 19m
        Direct
        SEA 21:04
        Toronto - Seattle | Thu, Oct 15 | Air Canada
        SEA 08:00
        4h 50m
        Direct
        YYZ 15:50
        Seattle - Toronto | Thu, Oct 22 | Air Canada
        €374 €440
        15% off
        15% off
        €440 €374
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Fri, Oct 23 | WestJet
        SEA 10:30
        9h 15m
        1 stop
        YYZ 22:45
        Seattle - Toronto | Sun, Oct 25 | WestJet
        €235 €440
        47% off
        47% off
        €440 €235
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Mon, Oct 12 | WestJet
        SEA 19:35
        7h 10m
        1 stop
        YYZ 05:45
        Seattle - Toronto | Sat, Oct 17 | WestJet
        €245
        44% off
        €440 €245
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Wed, Oct 14 | WestJet
        SEA 10:30
        7h 45m
        1 stop
        YYZ 21:15
        Seattle - Toronto | Tue, Oct 20 | WestJet
        €250
        43% off
        €440 €250
      • YYZ 13:30
        8h 15m
        1 stop
        SEA 18:45
        Toronto - Seattle | Wed, Oct 21 | WestJet
        SEA 19:35
        8h 20m
        1 stop
        YYZ 06:55
        Seattle - Toronto | Sat, Oct 24 | WestJet
        €252
        43% off
        €440 €252
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Thu, Oct 15 | WestJet
        SEA 10:30
        9h 15m
        1 stop
        YYZ 22:45
        Seattle - Toronto | Sat, Oct 17 | WestJet
        €254
        42% off
        €440 €254
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Wed, Nov 18 | WestJet
        SEA 14:30
        11h 30m
        1 stop
        YYZ 05:00
        Seattle - Toronto | Wed, Nov 25 | WestJet
        €279
        37% off
        €440 €279
      • YYZ 22:25
        23h 20m
        1 stop
        SEA 18:45
        Toronto - Seattle | Tue, Oct 13 | WestJet
        SEA 10:30
        9h 15m
        1 stop
        YYZ 22:45
        Seattle - Toronto | Mon, Oct 19 | WestJet
        €280
        36% off
        €440 €280
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Thu, Dec 3 | WestJet
        SEA 14:30
        17h 25m
        1 stop
        YYZ 10:55
        Seattle - Toronto | Mon, Dec 7 | WestJet
        €281
        36% off
        €440 €281
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Wed, Nov 11 | WestJet
        SEA 14:30
        19h 35m
        1 stop
        YYZ 13:05
        Seattle - Toronto | Fri, Nov 13 | WestJet
        €286
        35% off
        €440 €286
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Mon, Oct 19 | WestJet
        SEA 19:35
        7h 10m
        1 stop
        YYZ 05:45
        Seattle - Toronto | Sat, Oct 24 | WestJet
        €292
        34% off
        €440 €292
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Mon, Nov 9 | WestJet
        SEA 14:30
        19h 35m
        1 stop
        YYZ 13:05
        Seattle - Toronto | Fri, Nov 13 | WestJet
        €294
        33% off
        €440 €294
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Tue, Oct 20 | WestJet
        SEA 15:30
        11h 30m
        1 stop
        YYZ 06:00
        Seattle - Toronto | Mon, Oct 26 | WestJet
        €299
        32% off
        €440 €299
      • YTO 13:00
        17h 25m
        1 stop
        SEA 14:00
        Toronto - Seattle | Mon, Oct 12 | Normal Airline
        SEA 15:00
        6h
        Direct
        YTO 16:00
        Seattle - Toronto | Wed, Oct 14 | Normal Airline
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      • Cheapest nonstop
        YYZ 18:25
        5h 29m
        Direct
        SEA 20:54
        Toronto - Seattle | Sun, Oct 25 | Air Canada
        €184 €217
        15% off
        15% off
        €217 €184
      • YYZ 18:25
        5h 29m
        Direct
        SEA 20:54
        Toronto - Seattle | Sun, Nov 1 | Air Canada
        €184 €217
        15% off
        15% off
        €217 €184
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Sun, Nov 29 | WestJet
        €147 €217
        32% off
        32% off
        €217 €147
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Mon, Dec 7 | WestJet
        €148
        32% off
        €217 €148
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Fri, Dec 4 | WestJet
        €148
        32% off
        €217 €148
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Nov 24 | WestJet
        €149
        31% off
        €217 €149
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Fri, Nov 20 | WestJet
        €149
        31% off
        €217 €149
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Wed, Dec 2 | WestJet
        €149
        31% off
        €217 €149
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Dec 1 | WestJet
        €149
        31% off
        €217 €149
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Wed, Oct 14 | WestJet
        €150
        31% off
        €217 €150
      • YYZ 07:45
        9h 35m
        1 stop
        SEA 14:20
        Toronto - Seattle | Sun, Oct 25 | WestJet
        €163
        25% off
        €217 €163
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Sun, Nov 1 | WestJet
        €164
        24% off
        €217 €164
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Dec 8 | WestJet
        €169
        22% off
        €217 €169
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Thu, Nov 19 | WestJet
        €175
        19% off
        €217 €175
      • YTO 13:00
        17h 25m
        1 stop
        SEA 14:00
        Toronto - Seattle | Mon, Oct 12 | 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

What is the cheapest month to fly from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Toronto Pearson International Airport to Seattle-Tacoma International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Toronto Pearson International Airport to Seattle-Tacoma International Airport are usually in March, with an average price of €167. It is best to avoid July, when the average price can reach €317.

€317
€242
€167
€92
    Cheapest
  • €226
    Oct
  • €201
    Nov
  • €269
    Dec
  • €222
    Jan
  • €198
    Feb
  • €167
    Mar
  • €204
    Apr
  • €251
    May
  • €218
    Jun
  • €317
    Jul
  • €316
    Aug
  • €231
    Sep

What is the cheapest month to fly return from Toronto Pearson International Airport to Seattle-Tacoma International Airport?

The data is based on the past 12 months and shows the average monthly return fares from Toronto Pearson International Airport to Seattle-Tacoma International Airport in the Trip.com database.

Based on Trip.com's data from the past 12 months, January is often the month to find the lowest fares from Toronto Pearson International Airport to Seattle-Tacoma International Airport, with an average price of €192. June is usually the most expensive month, with an average price reaching €411.

€411
€302
€192
€83
    Cheapest
  • €266
    Oct
  • €282
    Nov
  • €293
    Dec
  • €192
    Jan
  • €238
    Feb
  • €217
    Mar
  • €315
    Apr
  • €340
    May
  • €411
    Jun
  • €335
    Jul
  • €396
    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 past 12 months and shows the average ticket prices from Toronto Pearson International Airport to Seattle-Tacoma International Airport for each day of the week in the Trip.com database.

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

€317
€257
€197
€137
    Cheapest
  • €243
    Mon
  • €209
    Tue
  • €197
    Wed
  • €207
    Thu
  • €233
    Fri
  • €265
    Sat
  • €317
    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 €147) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

WestJet
From €147
Air Canada
From €175
Apg Airlines
From €187
Air Transat
From €189
Delta Air Lines
From €191
Alaska Airlines
From €192
United Airlines
From €199
American Airlines
From €210
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. WS383

    Toronto Pearson International Airport

    12:40

    YYZ

    2h 45m

    Direct

    14:25

    YWG

    S M T W T F S
    Search

  2. WS229

    Winnipeg James Armstrong Richardson International Airport

    14:55

    YWG

    2h 15m

    Direct

    16:10

    YYC

    S M T W T F S

  3. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  4. WS629

    Toronto Pearson International Airport

    08:00

    YYZ

    4h 20m

    Direct

    10:20

    YYC

    S M T W T F S
    Search

  5. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  6. AC1113

    Toronto Pearson International Airport

    08:15

    YYZ

    3h 15m

    Direct

    09:30

    YQR

    - - - W T F -
    Search

  7. AC1103

    Regina International Airport

    10:25

    YQR

    2h 21m

    Direct

    11:46

    YVR

    - - - W T F -

  8. AC8804

    Vancouver International Airport

    13:10

    YVR

    1h 7m

    Direct

    14:17

    SEA

    S M T W T F S

  9. WS639

    Toronto Pearson International Airport

    12:00

    YYZ

    4h 20m

    Direct

    14:20

    YYC

    S M T W T F S
    Search

  10. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  11. WS627

    Toronto Pearson International Airport

    06:00

    YYZ

    4h 20m

    Direct

    08:20

    YYC

    S M T W T F S
    Search

  12. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  13. WS641

    Toronto Pearson International Airport

    13:30

    YYZ

    4h 20m

    Direct

    15:50

    YYC

    S M T W T F S
    Search

  14. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    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 3,311.13km
Cheapest one-way ticket price €147
Cheapest return ticket price €235

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 €455 in October, the most expensive month to book this route.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
  • 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 €147, and round-trip fares start from €235. The current lowest fare is a WestJet flight departing on Sun, Nov 29; 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 57 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 €328. 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 estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed on this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within the last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.