American Airlines flights from Seattle to St. Thomas

Recent searches for flights from Seattle to St. Thomas

Sep 2026
From$901*
Updated: 13 hours ago
Round tripIEconomy
Oct 2026
From$514*
Updated: 13 hours ago
Round tripIEconomy
Nov 2026
From$514*
Updated: 13 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $672
cmp-daily-histogram-bars-legend-max-price-aria-label $2.9K
Displaying fares for September-2026
  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    17

    Th

    SEP

  • SEA–STT, 09/18/26 – 09/25/26: From $2,541
    18

    Fr

  • SEA–STT, 09/19/26 – 09/26/26: From $1,204
    19

    Sa

  • SEA–STT, 09/20/26 – 09/27/26: From $2,908
    20

    Su

  • SEA–STT, 09/21/26 – 09/28/26: From $2,100
    21

    Mo

  • SEA–STT, 09/22/26 – 09/29/26: From $1,652
    22

    Tu

  • SEA–STT, 09/23/26 – 09/30/26: From $1,516
    23

    We

  • SEA–STT, 09/24/26 – 03/04/27: From $958
    24

    Th

  • SEA–STT, 09/25/26 – 10/02/26: From $2,077
    25

    Fr

  • SEA–STT, 09/26/26 – 10/03/26: From $901
    26

    Sa

  • SEA–STT, 09/27/26 – 10/04/26: From $1,553
    27

    Su

  • SEA–STT, 09/28/26 – 10/05/26: From $1,082
    28

    Mo

  • SEA–STT, 09/29/26 – 10/06/26: From $917
    29

    Tu

  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    30

    We

  • SEA–STT, 10/01/26 – 10/08/26: From $1,377
    01

    Th

    OCT

  • SEA–STT, 10/02/26 – 10/09/26: From $1,304
    02

    Fr

  • SEA–STT, 10/03/26 – 10/10/26: From $870
    03

    Sa

  • SEA–STT, 10/04/26 – 10/11/26: From $870
    04

    Su

  • SEA–STT, 10/05/26 – 10/12/26: From $672
    05

    Mo

  • SEA–STT, 10/06/26 – 10/13/26: From $796
    06

    Tu

  • SEA–STT, 10/07/26 – 10/14/26: From $1,050
    07

    We

  • SEA–STT, 10/08/26 – 10/15/26: From $1,106
    08

    Th

  • SEA–STT, 10/09/26 – 10/16/26: From $1,036
    09

    Fr

  • SEA–STT, 10/10/26 – 10/17/26: From $971
    10

    Sa

  • SEA–STT, 10/11/26 – 10/18/26: From $1,122
    11

    Su

  • SEA–STT, 10/12/26 – 10/19/26: From $837
    12

    Mo

  • SEA–STT, 10/13/26 – 10/20/26: From $717
    13

    Tu

  • SEA–STT, 10/14/26 – 10/21/26: From $796
    14

    We

  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    15

    Th

  • SEA–STT: cmp-view-offers-disclaimer. Find Offers
    16

    Fr

    • range$672-$2,908

    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

    $
    keyboard_arrow_down

    Seattle (SEA)to

    St. Thomas (STT)
    02/24/27 - 03/04/27

    Round trip

    Economy

    from
    $519Fare subject to changes
    Updated: 2 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    11/11/26 - 12/04/26

    Round trip

    Economy

    from
    $519Fare subject to changes
    Updated: 3 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $514Fare subject to changes
    Updated: 13 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $514Fare subject to changes
    Updated: 13 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/25/26 - 11/01/26

    Round trip

    Economy

    from
    $514Fare subject to changes
    Updated: 13 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    01/26/27 - 02/11/27

    Round trip

    Economy

    from
    $514Fare subject to changes
    Updated: 18 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    11/12/26 - 11/19/26

    Round trip

    Economy

    from
    $534Fare subject to changes
    Updated: 13 hours ago

    Seattle (SEA)to

    St. Thomas (STT)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $534Fare subject to changes
    Updated: 13 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.

    Earn up to $300 back on your next
    American Airlines flight

    Plus, 40,000 bonus miles with this credit card offer. Offers vary elsewhere. Terms apply.

    Learn more
    $300 statement credit
    40,000 bonus miles
    AAdvantage credit card