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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 TWD 5,223 and round-trip from TWD 8,367. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        YYZ 18:45
        5h 19m
        Direct
        SEA 21:04
        Toronto - Seattle | Thu, Oct 22 | Air Canada
        SEA 07:45
        4h 40m
        Direct
        YYZ 15:25
        Seattle - Toronto | Wed, Oct 28 | Air Canada
        TWD 13,013 TWD 14,651
        11% off
        11% off
        TWD 14,651 TWD 13,013
      • YYZ 18:45
        5h 19m
        Direct
        SEA 21:04
        Toronto - Seattle | Wed, Oct 14 | Air Canada
        SEA 08:00
        4h 50m
        Direct
        YYZ 15:50
        Seattle - Toronto | Wed, Oct 21 | Air Canada
        TWD 13,332 TWD 14,651
        9% off
        9% off
        TWD 14,651 TWD 13,332
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Thu, Oct 22 | WestJet
        SEA 10:30
        9h 15m
        1 stop
        YYZ 22:45
        Seattle - Toronto | Sat, Oct 24 | WestJet
        TWD 8,367 TWD 14,651
        43% off
        43% off
        TWD 14,651 TWD 8,367
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Sun, Oct 11 | WestJet
        SEA 19:35
        7h 10m
        1 stop
        YYZ 05:45
        Seattle - Toronto | Fri, Oct 16 | WestJet
        TWD 8,739
        40% off
        TWD 14,651 TWD 8,739
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Tue, Oct 13 | WestJet
        SEA 10:30
        7h 45m
        1 stop
        YYZ 21:15
        Seattle - Toronto | Mon, Oct 19 | WestJet
        TWD 8,915
        39% off
        TWD 14,651 TWD 8,915
      • YYZ 13:30
        8h 15m
        1 stop
        SEA 18:45
        Toronto - Seattle | Tue, Oct 20 | WestJet
        SEA 19:35
        8h 20m
        1 stop
        YYZ 06:55
        Seattle - Toronto | Fri, Oct 23 | WestJet
        TWD 8,991
        39% off
        TWD 14,651 TWD 8,991
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Wed, Oct 14 | WestJet
        SEA 10:30
        9h 15m
        1 stop
        YYZ 22:45
        Seattle - Toronto | Fri, Oct 16 | WestJet
        TWD 9,072
        38% off
        TWD 14,651 TWD 9,072
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Nov 17 | WestJet
        SEA 14:30
        11h 30m
        1 stop
        YYZ 05:00
        Seattle - Toronto | Tue, Nov 24 | WestJet
        TWD 9,963
        32% off
        TWD 14,651 TWD 9,963
      • YYZ 22:25
        23h 20m
        1 stop
        SEA 18:45
        Toronto - Seattle | Mon, Oct 12 | WestJet
        SEA 10:30
        9h 15m
        1 stop
        YYZ 22:45
        Seattle - Toronto | Sun, Oct 18 | WestJet
        TWD 10,001
        32% off
        TWD 14,651 TWD 10,001
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Wed, Dec 2 | WestJet
        SEA 14:30
        17h 25m
        1 stop
        YYZ 10:55
        Seattle - Toronto | Sun, Dec 6 | WestJet
        TWD 10,006
        32% off
        TWD 14,651 TWD 10,006
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Nov 10 | WestJet
        SEA 14:30
        19h 35m
        1 stop
        YYZ 13:05
        Seattle - Toronto | Thu, Nov 12 | WestJet
        TWD 10,216
        30% off
        TWD 14,651 TWD 10,216
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Sun, Oct 18 | WestJet
        SEA 19:35
        7h 10m
        1 stop
        YYZ 05:45
        Seattle - Toronto | Fri, Oct 23 | WestJet
        TWD 10,425
        28% off
        TWD 14,651 TWD 10,425
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Sun, Nov 8 | WestJet
        SEA 14:30
        19h 35m
        1 stop
        YYZ 13:05
        Seattle - Toronto | Thu, Nov 12 | WestJet
        TWD 10,487
        28% off
        TWD 14,651 TWD 10,487
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Mon, Oct 19 | WestJet
        SEA 15:30
        11h 30m
        1 stop
        YYZ 06:00
        Seattle - Toronto | Sun, Oct 25 | WestJet
        TWD 10,659
        27% off
        TWD 14,651 TWD 10,659
      • YTO 13:00
        17h 25m
        1 stop
        SEA 14:00
        Toronto - Seattle | Sun, Oct 11 | Normal Airline
        SEA 15:00
        6h
        Direct
        YTO 16:00
        Seattle - Toronto | Tue, Oct 13 | Normal Airline
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      • Cheapest nonstop
        YYZ 18:25
        5h 29m
        Direct
        SEA 20:54
        Toronto - Seattle | Sun, Nov 1 | Air Canada
        TWD 6,571 TWD 7,310
        10% off
        10% off
        TWD 7,310 TWD 6,571
      • YYZ 19:50
        5h 26m
        Direct
        SEA 22:16
        Toronto - Seattle | Thu, Oct 29 | Air Canada
        TWD 6,652 TWD 7,310
        9% off
        9% off
        TWD 7,310 TWD 6,652
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Wed, Dec 2 | WestJet
        TWD 5,223 TWD 7,310
        28% off
        28% off
        TWD 7,310 TWD 5,223
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Mon, Nov 9 | WestJet
        TWD 5,232
        28% off
        TWD 7,310 TWD 5,232
      • YYZ 07:45
        8h 35m
        1 stop
        SEA 13:20
        Toronto - Seattle | Tue, Nov 24 | WestJet
        TWD 5,242
        28% off
        TWD 7,310 TWD 5,242
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Sun, Nov 29 | WestJet
        TWD 5,242
        28% off
        TWD 7,310 TWD 5,242
      • YYZ 06:30
        10h 8m
        1 stop
        SEA 13:38
        Toronto - Seattle | Sat, Nov 21 | WestJet
        TWD 5,251
        28% off
        TWD 7,310 TWD 5,251
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Dec 8 | WestJet
        TWD 5,284
        28% off
        TWD 7,310 TWD 5,284
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Tue, Dec 1 | WestJet
        TWD 5,304
        27% off
        TWD 7,310 TWD 5,304
      • YYZ 12:00
        9h 45m
        1 stop
        SEA 18:45
        Toronto - Seattle | Fri, Oct 23 | WestJet
        TWD 5,327
        27% off
        TWD 7,310 TWD 5,327
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Thu, Nov 19 | WestJet
        TWD 5,437
        26% off
        TWD 7,310 TWD 5,437
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Mon, Nov 16 | WestJet
        TWD 5,604
        23% off
        TWD 7,310 TWD 5,604
      • YYZ 06:30
        9h 50m
        1 stop
        SEA 13:20
        Toronto - Seattle | Sun, Nov 1 | WestJet
        TWD 5,851
        20% off
        TWD 7,310 TWD 5,851
      • YYZ 07:30
        9h 10m
        1 stop
        SEA 13:40
        Toronto - Seattle | Fri, Nov 20 | WestJet
        TWD 5,980
        18% off
        TWD 7,310 TWD 5,980
      • YTO 13:00
        17h 25m
        1 stop
        SEA 14:00
        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

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 TWD 5,943. It is best to avoid July, when the average price can reach TWD 11,322.

TWD 11,322
TWD 8,633
TWD 5,943
TWD 3,254
    Cheapest
  • TWD 8,056
    Oct
  • TWD 7,162
    Nov
  • TWD 9,595
    Dec
  • TWD 7,901
    Jan
  • TWD 7,048
    Feb
  • TWD 5,943
    Mar
  • TWD 7,284
    Apr
  • TWD 8,936
    May
  • TWD 7,787
    Jun
  • TWD 11,322
    Jul
  • TWD 11,266
    Aug
  • TWD 8,218
    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 TWD 6,835. June is usually the most expensive month, with an average price reaching TWD 14,654.

TWD 14,654
TWD 10,745
TWD 6,835
TWD 2,926
    Cheapest
  • TWD 9,488
    Oct
  • TWD 10,059
    Nov
  • TWD 10,461
    Dec
  • TWD 6,835
    Jan
  • TWD 8,482
    Feb
  • TWD 7,724
    Mar
  • TWD 11,235
    Apr
  • TWD 12,123
    May
  • TWD 14,654
    Jun
  • TWD 11,945
    Jul
  • TWD 14,128
    Aug
  • TWD 14,182
    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.

TWD 11,302
TWD 9,158
TWD 7,014
TWD 4,870
    Cheapest
  • TWD 8,674
    Mon
  • TWD 7,459
    Tue
  • TWD 7,014
    Wed
  • TWD 7,384
    Thu
  • TWD 8,314
    Fri
  • TWD 9,452
    Sat
  • TWD 11,302
    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 TWD 5,223) among 10 carriers operating this route. Based on Trip.com's latest 7-day flight data.

WestJet
From TWD 5,223
Air Canada
From TWD 6,233
Apg Airlines
From TWD 6,657
Air Transat
From TWD 6,752
Delta Air Lines
From TWD 6,819
Alaska Airlines
From TWD 6,847
United Airlines
From TWD 7,076
American Airlines
From TWD 7,476
Porter Airlines
From TWD 8,272
Flair Airlines
From TWD 8,491

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

    08:00

    YYZ

    4h 20m

    Direct

    10:20

    YYC

    S M T W T F S
    Search

  2. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  3. WS639

    Toronto Pearson International Airport

    12:00

    YYZ

    4h 20m

    Direct

    14:20

    YYC

    S M T W T F S
    Search

  4. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  5. WS627

    Toronto Pearson International Airport

    06:15

    YYZ

    4h 20m

    Direct

    08:35

    YYC

    S M T W T F S
    Search

  6. WS1552

    Calgary International Airport

    17:50

    YYC

    1h 55m

    Direct

    18:45

    SEA

    S M T W T F S

  7. WS659

    Toronto Pearson International Airport

    22:25

    YYZ

    4h 19m

    Direct

    00:44

    YYC

    S M T W T F S
    Search

  8. WS1554

    Calgary International Airport

    08:45

    YYC

    1h 55m

    Direct

    09:40

    SEA

    S M T W T F S

  9. PD653

    Toronto Pearson International Airport

    11:25

    YYZ

    5h 3m

    Direct

    13:28

    LAS

    S M T W T F S
    Search

  10. F92407

    Harry Reid International Airport

    08:05

    LAS

    2h 54m

    Direct

    10:59

    SEA

    S - - W T - S

  11. WS641

    Toronto Pearson International Airport

    13:30

    YYZ

    4h 20m

    Direct

    15:50

    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
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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 TWD 5,223
Cheapest return ticket price TWD 8,367

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 1 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 TWD 15,247 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 TWD 5,223, and round-trip fares start from TWD 8,367. The current lowest fare is a WestJet flight departing on Wed, Dec 2; 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 TWD 11,697. 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.