American Airlines flights from Seattle to Toronto

Recent searches for flights from Seattle to Toronto

Aug 2026
From$1,006*
Updated: 7 hours ago
Round tripIEconomy
Sep 2026
From$526*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$615*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $526
cmp-daily-histogram-bars-legend-max-price-aria-label $1.1K
Displaying fares for August-2026
  • SEA–YYZ, 08/24/26 – 08/31/26: From $1,049
    24

    Mo

    AUG

  • SEA–YYZ, 08/25/26 – 09/01/26: From $1,091
    25

    Tu

  • SEA–YYZ, 08/26/26 – 09/02/26: From $1,093
    26

    We

  • SEA–YYZ, 08/27/26 – 09/03/26: From $1,135
    27

    Th

  • SEA–YYZ, 08/28/26 – 09/01/26: From $1,086
    28

    Fr

  • SEA–YYZ, 08/29/26 – 09/05/26: From $1,086
    29

    Sa

  • SEA–YYZ, 08/30/26 – 09/06/26: From $1,006
    30

    Su

  • SEA–YYZ, 08/31/26 – 09/07/26: From $1,006
    31

    Mo

  • SEA–YYZ, 09/01/26 – 09/08/26: From $987
    01

    Tu

    SEP

  • SEA–YYZ, 09/02/26 – 09/09/26: From $943
    02

    We

  • SEA–YYZ, 09/03/26 – 09/10/26: From $985
    03

    Th

  • SEA–YYZ, 09/04/26 – 09/11/26: From $943
    04

    Fr

  • SEA–YYZ, 09/05/26 – 09/12/26: From $851
    05

    Sa

  • SEA–YYZ, 09/06/26 – 09/13/26: From $726
    06

    Su

  • SEA–YYZ, 09/07/26 – 09/14/26: From $848
    07

    Mo

  • SEA–YYZ, 09/08/26 – 09/15/26: From $685
    08

    Tu

  • SEA–YYZ, 09/09/26 – 09/16/26: From $670
    09

    We

  • SEA–YYZ, 09/10/26 – 09/17/26: From $696
    10

    Th

  • SEA–YYZ, 09/11/26 – 09/18/26: From $726
    11

    Fr

  • SEA–YYZ, 09/12/26 – 09/19/26: From $591
    12

    Sa

  • SEA–YYZ, 09/13/26 – 09/20/26: From $710
    13

    Su

  • SEA–YYZ, 09/14/26 – 09/21/26: From $545
    14

    Mo

  • SEA–YYZ, 09/15/26 – 09/22/26: From $526
    15

    Tu

  • SEA–YYZ, 09/16/26 – 09/23/26: From $526
    16

    We

  • SEA–YYZ, 09/17/26 – 09/24/26: From $545
    17

    Th

  • SEA–YYZ, 09/18/26 – 09/25/26: From $605
    18

    Fr

  • SEA–YYZ, 09/19/26 – 09/26/26: From $526
    19

    Sa

  • SEA–YYZ, 09/20/26 – 09/27/26: From $621
    20

    Su

  • SEA–YYZ, 09/21/26 – 09/28/26: From $545
    21

    Mo

  • SEA–YYZ, 09/22/26 – 09/29/26: From $526
    22

    Tu

  • SEA–YYZ, 09/23/26 – 09/30/26: From $526
    23

    We

    • range$526-$1,135

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Seattle to Toronto flights

    $
    keyboard_arrow_down

    Seattle (SEA)to

    Toronto (YYZ)
    09/16/26 - 09/23/26

    Round trip

    Economy

    from
    $526Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/22/26 - 09/29/26

    Round trip

    Economy

    from
    $526Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/23/26 - 09/30/26

    Round trip

    Economy

    from
    $526Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/15/26 - 09/22/26

    Round trip

    Economy

    from
    $526Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/19/26 - 09/26/26

    Round trip

    Economy

    from
    $526Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/14/26 - 09/21/26

    Round trip

    Economy

    from
    $545Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/17/26 - 09/24/26

    Round trip

    Economy

    from
    $545Fare subject to changes
    Updated: 7 hours ago

    Seattle (SEA)to

    Toronto (YYZ)
    09/21/26 - 09/28/26

    Round trip

    Economy

    from
    $545Fare subject to changes
    Updated: 7 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Seattle to Toronto

    Looking for lower fares on your trip from Seattle to Toronto? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Seattle to Toronto