American Airlines flights from Seattle to St. Thomas

Recent searches for flights from Seattle to St. Thomas

Aug 2026
From$525*
Updated: 5 hours ago
Round tripIEconomy
Sep 2026
From$771*
Updated: 5 hours ago
Round tripIEconomy
Oct 2026
From$494*
Updated: 5 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $525
cmp-daily-histogram-bars-legend-max-price-aria-label $8.7K
Displaying fares for August-2026
  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    04

    Tu

    AUG

  • SEA–STT, 08/05/26 – 08/12/26: From $8,718
    05

    We

  • SEA–STT, 08/06/26 – 08/13/26: From $1,496
    06

    Th

  • SEA–STT, 08/07/26 – 08/14/26: From $1,922
    07

    Fr

  • SEA–STT, 08/08/26 – 08/15/26: From $1,632
    08

    Sa

  • SEA–STT, 08/09/26 – 08/16/26: From $1,581
    09

    Su

  • SEA–STT, 08/10/26 – 08/17/26: From $1,961
    10

    Mo

  • SEA–STT, 08/11/26 – 08/18/26: From $1,438
    11

    Tu

  • SEA–STT, 08/12/26 – 08/19/26: From $1,964
    12

    We

  • SEA–STT, 08/13/26 – 08/20/26: From $1,487
    13

    Th

  • SEA–STT, 08/14/26 – 08/21/26: From $1,466
    14

    Fr

  • SEA–STT, 08/15/26 – 08/22/26: From $895
    15

    Sa

  • SEA–STT, 08/16/26 – 08/23/26: From $1,536
    16

    Su

  • SEA–STT, 08/17/26 – 08/24/26: From $1,733
    17

    Mo

  • SEA–STT, 08/18/26 – 08/25/26: From $997
    18

    Tu

  • SEA–STT, 08/19/26 – 08/26/26: From $1,932
    19

    We

  • SEA–STT, 08/20/26 – 08/27/26: From $1,291
    20

    Th

  • SEA–STT, 08/21/26 – 08/28/26: From $997
    21

    Fr

  • SEA–STT, 08/22/26 – 08/29/26: From $1,176
    22

    Sa

  • SEA–STT, 08/23/26 – 08/30/26: From $1,476
    23

    Su

  • SEA–STT, 08/24/26 – 08/31/26: From $1,261
    24

    Mo

  • SEA–STT, 08/25/26 – 09/01/26: From $739
    25

    Tu

  • SEA–STT, 08/26/26 – 09/02/26: From $779
    26

    We

  • SEA–STT, 08/27/26 – 09/03/26: From $799
    27

    Th

  • SEA–STT, 08/28/26 – 09/05/26: From $525
    28

    Fr

  • SEA–STT, 08/29/26 – 09/05/26: From $525
    29

    Sa

  • SEA–STT, 08/30/26 – 09/06/26: From $774
    30

    Su

  • SEA–STT, 08/31/26 – 09/07/26: From $1,182
    31

    Mo

  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    01

    Tu

    SEP

  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    02

    We

  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    03

    Th

    • range$525-$8,718

    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 St. Thomas flights

    $
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    Seattle (SEA)to

    St. Thomas (STT)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/12/26 - 10/19/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/18/26 - 10/25/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/05/26 - 10/12/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/22/26 - 10/29/26

    Round trip

    Economy

    from
    $494Fare subject to changes
    Updated: 5 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 St. Thomas

    Looking for lower fares on your trip from Seattle to St. Thomas? 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 St. Thomas