American Airlines flights from Washington, D.C. to Liberia (Costa Rica)

Recent searches for flights from Washington, D.C. to Liberia (Costa Rica)

Jul 2026
From$1,422*
Updated: 54 minutes ago
Round tripIEconomy
Aug 2026
From$378*
Updated: 54 minutes ago
Round tripIEconomy
Sep 2026
From$355*
Updated: 54 minutes ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $378
cmp-daily-histogram-bars-legend-max-price-aria-label $2.8K
Displaying fares for July-2026
  • WAS–LIR: cmp-view-offers-disclaimer. Find Offers
    30

    Th

    JUL

  • DCA–LIR, 07/31/26 – 08/07/26: From $1,422
    31

    Fr

  • DCA–LIR, 08/01/26 – 08/08/26: From $2,827
    01

    Sa

    AUG

  • DCA–LIR, 08/02/26 – 08/09/26: From $1,393
    02

    Su

  • DCA–LIR, 08/03/26 – 08/10/26: From $1,168
    03

    Mo

  • DCA–LIR, 08/04/26 – 08/11/26: From $1,388
    04

    Tu

  • DCA–LIR, 08/05/26 – 08/12/26: From $1,393
    05

    We

  • DCA–LIR, 08/06/26 – 08/13/26: From $1,422
    06

    Th

  • DCA–LIR, 08/07/26 – 08/14/26: From $1,172
    07

    Fr

  • DCA–LIR, 08/08/26 – 08/15/26: From $1,168
    08

    Sa

  • DCA–LIR, 08/09/26 – 08/16/26: From $1,168
    09

    Su

  • DCA–LIR, 08/10/26 – 08/17/26: From $898
    10

    Mo

  • DCA–LIR, 08/11/26 – 08/18/26: From $898
    11

    Tu

  • DCA–LIR, 08/12/26 – 08/19/26: From $898
    12

    We

  • DCA–LIR, 08/13/26 – 08/20/26: From $749
    13

    Th

  • DCA–LIR, 08/14/26 – 08/21/26: From $892
    14

    Fr

  • DCA–LIR, 08/15/26 – 08/22/26: From $987
    15

    Sa

  • DCA–LIR, 08/16/26 – 08/23/26: From $1,162
    16

    Su

  • DCA–LIR, 08/17/26 – 08/24/26: From $664
    17

    Mo

  • DCA–LIR, 08/18/26 – 08/25/26: From $887
    18

    Tu

  • DCA–LIR, 08/19/26 – 08/26/26: From $916
    19

    We

  • DCA–LIR, 08/20/26 – 08/27/26: From $978
    20

    Th

  • DCA–LIR, 08/21/26 – 08/28/26: From $641
    21

    Fr

  • DCA–LIR, 08/22/26 – 08/29/26: From $638
    22

    Sa

  • DCA–LIR, 08/23/26 – 08/30/26: From $856
    23

    Su

  • DCA–LIR, 08/24/26 – 08/31/26: From $633
    24

    Mo

  • DCA–LIR, 08/25/26 – 09/01/26: From $538
    25

    Tu

  • DCA–LIR, 08/26/26 – 09/02/26: From $466
    26

    We

  • DCA–LIR, 08/27/26 – 09/03/26: From $381
    27

    Th

  • DCA–LIR, 08/28/26 – 09/04/26: From $381
    28

    Fr

  • DCA–LIR, 08/29/26 – 09/05/26: From $378
    29

    Sa

    • range$378-$2,827

    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 Washington, D.C. to Liberia (Costa Rica) flights

    $
    keyboard_arrow_down

    *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 Washington, D.C. to Liberia (Costa Rica)

    Looking for lower fares on your trip from Washington, D.C. 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 Washington, D.C. to Liberia (Costa Rica)