American Airlines flights from Philadelphia to Liberia (Costa Rica)

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

Jul 2026
From$1,533*
Updated: 7 hours ago
Round tripIEconomy
Aug 2026
From$393*
Updated: 7 hours ago
Round tripIEconomy
Sep 2026
From$388*
Updated: 4 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $393
cmp-daily-histogram-bars-legend-max-price-aria-label $2.6K
Displaying fares for July-2026
  • PHL–LIR: cmp-view-offers-disclaimer. Find Offers
    30

    Th

    JUL

  • PHL–LIR, 07/31/26 – 08/07/26: From $1,533
    31

    Fr

  • PHL–LIR, 08/01/26 – 08/08/26: From $2,594
    01

    Sa

    AUG

  • PHL–LIR, 08/02/26 – 08/06/26: From $1,541
    02

    Su

  • PHL–LIR, 08/03/26 – 08/10/26: From $1,913
    03

    Mo

  • PHL–LIR, 08/04/26 – 08/11/26: From $1,463
    04

    Tu

  • PHL–LIR, 08/05/26 – 08/12/26: From $1,493
    05

    We

  • PHL–LIR, 08/06/26 – 08/13/26: From $1,533
    06

    Th

  • PHL–LIR, 08/07/26 – 08/13/26: From $1,248
    07

    Fr

  • PHL–LIR, 08/08/26 – 08/15/26: From $1,279
    08

    Sa

  • PHL–LIR, 08/09/26 – 08/16/26: From $1,284
    09

    Su

  • PHL–LIR, 08/10/26 – 08/17/26: From $830
    10

    Mo

  • PHL–LIR, 08/11/26 – 08/18/26: From $1,163
    11

    Tu

  • PHL–LIR, 08/12/26 – 08/19/26: From $1,168
    12

    We

  • PHL–LIR, 08/13/26 – 08/17/26: From $846
    13

    Th

  • PHL–LIR, 08/14/26 – 08/17/26: From $846
    14

    Fr

  • PHL–LIR, 08/15/26 – 08/22/26: From $1,178
    15

    Sa

  • PHL–LIR, 08/16/26 – 08/23/26: From $1,183
    16

    Su

  • PHL–LIR, 08/17/26 – 08/24/26: From $677
    17

    Mo

  • PHL–LIR, 08/18/26 – 08/25/26: From $1,062
    18

    Tu

  • PHL–LIR, 08/19/26 – 08/24/26: From $721
    19

    We

  • PHL–LIR, 08/20/26 – 08/27/26: From $828
    20

    Th

  • PHL–LIR, 08/21/26 – 08/28/26: From $670
    21

    Fr

  • PHL–LIR, 08/22/26 – 08/29/26: From $627
    22

    Sa

  • PHL–LIR, 08/23/26 – 08/30/26: From $733
    23

    Su

  • PHL–LIR, 08/24/26 – 08/31/26: From $672
    24

    Mo

  • PHL–LIR, 08/25/26 – 09/01/26: From $530
    25

    Tu

  • PHL–LIR, 08/26/26 – 09/02/26: From $445
    26

    We

  • PHL–LIR, 08/27/26 – 09/03/26: From $393
    27

    Th

  • PHL–LIR, 08/28/26 – 09/04/26: From $393
    28

    Fr

  • PHL–LIR, 08/29/26 – 09/05/26: From $393
    29

    Sa

    • range$393-$2,594

    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

    $
    keyboard_arrow_down

    Philadelphia (PHL)to

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

    Round trip

    Economy

    from
    $388Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $388Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    09/12/26 - 09/17/26

    Round trip

    Economy

    from
    $388Fare subject to changes
    Updated: 4 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    09/15/26 - 09/22/26

    Round trip

    Economy

    from
    $393Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $393Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    09/10/26 - 09/17/26

    Round trip

    Economy

    from
    $393Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    09/25/26 - 10/02/26

    Round trip

    Economy

    from
    $393Fare subject to changes
    Updated: 7 hours ago

    Philadelphia (PHL)to

    Liberia (Costa Rica) (LIR)
    09/28/26 - 10/05/26

    Round trip

    Economy

    from
    $393Fare subject to changes
    Updated: 7 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

    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 Liberia (Costa Rica)