Flights from Philadelphia to Liberia (Costa Rica) from $ 358*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Philadelphia (PHL) to Liberia (Costa Rica) (LIR)

May 2026
From$ 982*
Viewed: 1 day ago
RoundTrip|Economy
Jun 2026
From$ 358*
Viewed: 7 hours ago
RoundTrip|Economy
Jul 2026
From$ 448*
Viewed: 7 hours ago
RoundTrip|Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $ 358
cmp-daily-histogram-bars-legend-max-price-aria-label $ 1.1K
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    • Range$ 358-$ 1,064

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

    More United deals on Philadelphia (PHL) to Liberia (Costa Rica) (LIR) flights

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    More United deals on Philadelphia (PHL) to Liberia (Costa Rica) (LIR) flights
    From
    To
    Fare Type
    Dates
    Price
    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		06/20/26 - 06/23/26

    from

    $ 358

    Viewed: 1 day ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		06/12/26 - 06/16/26

    from

    $ 358

    Viewed: 20 hours ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		06/19/26 - 06/23/26

    from

    $ 358

    Viewed: 7 hours ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		06/16/26 - 06/23/26

    from

    $ 358

    Viewed: 7 hours ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		08/21/26 - 09/04/26

    from

    $ 363

    Viewed: 7 hours ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		08/22/26 - 09/05/26

    from

    $ 363

    Viewed: 7 hours ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		06/12/26 - 06/16/26

    from

    $ 381

    Viewed: 7 hours ago

    Philadelphia (PHL)Liberia (Costa Rica) (LIR)Roundtrip
    |
    Economy    		06/11/26 - 06/25/26

    from

    $ 386

    Viewed: 7 hours ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.

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