American Airlines flights from Saint Louis to San Juan

Recent searches for flights from Saint Louis to San Juan

Mar 2026
From$404*
Updated: 20 hours ago
Round tripIEconomy
Apr 2026
From$242*
Updated: 18 hours ago
Round tripIEconomy
May 2026
From$242*
Updated: 3 minutes ago
Round tripIEconomy
$314
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    • range$314-$736

    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 Saint Louis to San Juan flights

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    Saint Louis (STL)to

    San Juan (SJU)
    04/24/26 - 05/01/26

    Round trip

    Economy

    from
    $242Fare subject to changes
    Updated: 18 hours ago

    Saint Louis (STL)to

    San Juan (SJU)
    05/17/26 - 05/20/26

    Round trip

    Economy

    from
    $242Fare subject to changes
    Updated: 3 minutes ago

    Saint Louis (STL)to

    San Juan (SJU)
    06/01/26 - 06/05/26

    Round trip

    Economy

    from
    $296Fare subject to changes
    Updated: 52 minutes ago

    Saint Louis (STL)to

    San Juan (SJU)
    11/18/26 - 11/25/26

    Round trip

    Economy

    from
    $301Fare subject to changes
    Updated: 17 hours ago

    Saint Louis (STL)to

    San Juan (SJU)
    04/08/26 - 04/14/26

    Round trip

    Economy

    from
    $314Fare subject to changes
    Updated: 19 hours ago

    Saint Louis (STL)to

    San Juan (SJU)
    06/05/26 - 06/08/26

    Round trip

    Economy

    from
    $390Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

    San Juan (SJU)
    06/19/26 - 06/24/26

    Round trip

    Economy

    from
    $392Fare subject to changes
    Updated: 17 hours ago

    Saint Louis (STL)to

    San Juan (SJU)
    05/14/26 - 05/17/26

    Round trip

    Economy

    from
    $401Fare subject to changes
    Updated: 9 minutes 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.

    American Airlines flights from Saint Louis to San Juan

    Earn up to $400 back on your next American Airlines flight plus, 30,000 bonus miles. Terms apply. Opens another site in a new window that may not meet accessibility guidelines.