American Airlines flights from Philadelphia to Liberia (Costa Rica)

Recent searches for flights from Philadelphia to Liberia (Costa Rica)

Mar 2026
From$573*
Updated: 6 hours ago
Round tripIEconomy
Apr 2026
From$1,682*
Updated: 23 hours ago
Round tripIEconomy
May 2026
From$376*
Updated: 22 hours ago
Round tripIEconomy
$573
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    • range$573-$1,682

    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 Liberia (Costa Rica) flights

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    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    12/10/26 - 12/17/26

    Round trip

    Economy

    from
    $356Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/22/26 - 10/26/26

    Round trip

    Economy

    from
    $381Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    05/22/26 - 05/26/26

    Round trip

    Economy

    from
    $426Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    12/11/26 - 12/14/26

    Round trip

    Economy

    from
    $442Fare subject to changes
    Updated: 10 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    08/15/26 - 08/22/26

    Round trip

    Economy

    from
    $447Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    07/09/26 - 07/14/26

    Round trip

    Economy

    from
    $508Fare subject to changes
    Updated: 8 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    08/12/26 - 08/15/26

    Round trip

    Economy

    from
    $520Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    05/16/26 - 05/21/26

    Round trip

    Economy

    from
    $376Fare subject to changes
    Updated: 22 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.

    American Airlines flights from Philadelphia to Liberia (Costa Rica)

    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.