American Airlines flights from Philadelphia to Liberia (Costa Rica)

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

Sep 2026
From$540*
Updated: 2 hours ago
Round tripIEconomy
Oct 2026
From$318*
Updated: 8 hours ago
Round tripIEconomy
Nov 2026
From$397*
Updated: 4 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $397
cmp-daily-histogram-bars-legend-max-price-aria-label $926
Displaying fares for September-2026
  • PHL–LIR, 09/08/26 – 09/15/26: From $677
    08

    Tu

    SEP

  • PHL–LIR, 09/09/26 – 09/16/26: From $758
    09

    We

  • PHL–LIR, 09/10/26 – 09/17/26: From $717
    10

    Th

  • PHL–LIR, 09/11/26 – 09/18/26: From $717
    11

    Fr

  • PHL–LIR, 09/12/26 – 09/19/26: From $657
    12

    Sa

  • PHL–LIR, 09/13/26 – 09/20/26: From $722
    13

    Su

  • PHL–LIR, 09/14/26 – 09/21/26: From $717
    14

    Mo

  • PHL–LIR, 09/15/26 – 09/22/26: From $649
    15

    Tu

  • PHL–LIR, 09/16/26 – 09/23/26: From $813
    16

    We

  • PHL–LIR, 09/17/26 – 09/24/26: From $689
    17

    Th

  • PHL–LIR, 09/18/26 – 09/25/26: From $689
    18

    Fr

  • PHL–LIR, 09/19/26 – 09/26/26: From $717
    19

    Sa

  • PHL–LIR, 09/20/26 – 09/27/26: From $722
    20

    Su

  • PHL–LIR, 09/21/26 – 09/28/26: From $717
    21

    Mo

  • PHL–LIR, 09/22/26 – 09/29/26: From $712
    22

    Tu

  • PHL–LIR, 09/23/26 – 09/30/26: From $602
    23

    We

  • PHL–LIR, 09/24/26 – 10/01/26: From $540
    24

    Th

  • PHL–LIR, 09/25/26 – 10/02/26: From $540
    25

    Fr

  • PHL–LIR, 09/26/26 – 10/03/26: From $599
    26

    Sa

  • PHL–LIR, 09/27/26 – 10/04/26: From $604
    27

    Su

  • PHL–LIR, 09/28/26 – 10/05/26: From $599
    28

    Mo

  • PHL–LIR, 09/29/26 – 10/06/26: From $563
    29

    Tu

  • PHL–LIR, 09/30/26 – 10/07/26: From $926
    30

    We

  • PHL–LIR, 10/01/26 – 10/08/26: From $450
    01

    Th

    OCT

  • PHL–LIR, 10/02/26 – 10/09/26: From $450
    02

    Fr

  • PHL–LIR, 10/03/26 – 10/10/26: From $450
    03

    Sa

  • PHL–LIR, 10/04/26 – 10/11/26: From $455
    04

    Su

  • PHL–LIR, 10/05/26 – 10/12/26: From $529
    05

    Mo

  • PHL–LIR, 10/06/26 – 10/13/26: From $397
    06

    Tu

  • PHL–LIR, 10/07/26 – 10/14/26: From $466
    07

    We

    • range$397-$926

    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)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $323Fare subject to changes
    Updated: 2 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $323Fare subject to changes
    Updated: 2 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    02/08/27 - 02/12/27

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    02/20/27 - 02/26/27

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 1 hour ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $397Fare subject to changes
    Updated: 2 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/10/26 - 10/13/26

    Round trip

    Economy

    from
    $318Fare subject to changes
    Updated: 8 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $323Fare subject to changes
    Updated: 21 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/11/26 - 10/13/26

    Round trip

    Economy

    from
    $323Fare subject to changes
    Updated: 8 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 Liberia (Costa Rica)

    Looking for lower fares on your trip from Philadelphia to Liberia (Costa Rica)? 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

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    • 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 Liberia (Costa Rica)