American Airlines flights from Philadelphia to St. Thomas

Recent searches for flights from Philadelphia to St. Thomas

Aug 2026
From$894*
Updated: 4 hours ago
Round tripIEconomy
Sep 2026
From$640*
Updated: 4 hours ago
Round tripIEconomy
Oct 2026
From$640*
Updated: 4 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $824
cmp-daily-histogram-bars-legend-max-price-aria-label $2.0K
Displaying fares for August-2026
  • PHL–STT, 08/23/26 – 08/30/26: From $1,128
    23

    Su

    AUG

  • PHL–STT, 08/24/26 – 08/31/26: From $1,088
    24

    Mo

  • PHL–STT, 08/25/26 – 09/01/26: From $1,245
    25

    Tu

  • PHL–STT, 08/26/26 – 09/02/26: From $986
    26

    We

  • PHL–STT, 08/27/26 – 09/03/26: From $894
    27

    Th

  • PHL–STT, 08/28/26 – 09/04/26: From $894
    28

    Fr

  • PHL–STT, 08/29/26 – 09/05/26: From $946
    29

    Sa

  • PHL–STT, 08/30/26 – 09/06/26: From $936
    30

    Su

  • PHL–STT, 08/31/26 – 09/07/26: From $1,336
    31

    Mo

  • PHL–STT, 09/01/26 – 09/08/26: From $1,031
    01

    Tu

    SEP

  • PHL–STT, 09/02/26 – 09/09/26: From $1,542
    02

    We

  • PHL–STT, 09/03/26 – 09/10/26: From $1,661
    03

    Th

  • PHL–STT, 09/04/26 – 09/11/26: From $1,182
    04

    Fr

  • PHL–STT, 09/05/26 – 09/12/26: From $1,253
    05

    Sa

  • PHL–STT, 09/06/26 – 09/13/26: From $1,963
    06

    Su

  • PHL–STT, 09/07/26 – 09/14/26: From $1,203
    07

    Mo

  • PHL–STT, 09/08/26 – 09/15/26: From $1,439
    08

    Tu

  • PHL–STT, 09/09/26 – 09/16/26: From $1,627
    09

    We

  • PHL–STT, 09/10/26 – 09/17/26: From $1,088
    10

    Th

  • PHL–STT, 09/11/26 – 09/18/26: From $1,209
    11

    Fr

  • PHL–STT, 09/12/26 – 09/19/26: From $1,071
    12

    Sa

  • PHL–STT, 09/13/26 – 09/20/26: From $1,712
    13

    Su

  • PHL–STT, 09/14/26 – 09/21/26: From $1,130
    14

    Mo

  • PHL–STT, 09/15/26 – 09/22/26: From $1,088
    15

    Tu

  • PHL–STT, 09/16/26 – 09/23/26: From $1,093
    16

    We

  • PHL–STT, 09/17/26 – 09/24/26: From $824
    17

    Th

  • PHL–STT, 09/18/26 – 09/22/26: From $1,111
    18

    Fr

  • PHL–STT, 09/19/26 – 09/26/26: From $966
    19

    Sa

  • PHL–STT, 09/20/26 – 09/22/26: From $1,176
    20

    Su

  • PHL–STT: cmp-view-offers-disclaimer. Find Offers
    21

    Mo

  • PHL–STT, 09/22/26 – 09/29/26: From $988
    22

    Tu

    • range$824-$1,963

    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 Philadelphia to St. Thomas flights

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    Philadelphia (PHL)to

    St. Thomas (STT)
    01/19/27 - 01/26/27

    Round trip

    Economy

    from
    $631Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    St. Thomas (STT)
    03/09/27 - 03/17/27

    Round trip

    Economy

    from
    $631Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    St. Thomas (STT)
    03/23/27 - 04/01/27

    Round trip

    Economy

    from
    $636Fare subject to changes
    Updated: 23 hours ago

    Philadelphia (PHL)to

    St. Thomas (STT)
    03/31/27 - 04/09/27

    Round trip

    Economy

    from
    $636Fare subject to changes
    Updated: 23 hours ago

    Philadelphia (PHL)to

    St. Thomas (STT)
    03/10/27 - 03/17/27

    Round trip

    Economy

    from
    $636Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    St. Thomas (STT)
    03/11/27 - 03/17/27

    Round trip

    Economy

    from
    $636Fare subject to changes
    Updated: 17 hours ago

    Philadelphia (PHL)to

    St. Thomas (STT)
    11/01/26 - 11/08/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

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

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 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 Philadelphia to St. Thomas

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