American Airlines flights from San Francisco to Liberia (Costa Rica)

Recent searches for flights from San Francisco to Liberia (Costa Rica)

Jul 2026
From$1,244*
Updated: 2 hours ago
Round tripIEconomy
Aug 2026
From$640*
Updated: 2 hours ago
Round tripIEconomy
Sep 2026
From$640*
Updated: 2 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $640
cmp-daily-histogram-bars-legend-max-price-aria-label $3.0K
Displaying fares for July-2026
  • SFO–LIR: cmp-view-offers-disclaimer. Find Offers
    30

    Th

    JUL

  • SFO–LIR, 07/31/26 – 08/07/26: From $1,244
    31

    Fr

  • SFO–LIR, 08/01/26 – 08/08/26: From $3,013
    01

    Sa

    AUG

  • SFO–LIR, 08/02/26 – 08/09/26: From $1,694
    02

    Su

  • SFO–LIR, 08/03/26 – 08/10/26: From $1,689
    03

    Mo

  • SFO–LIR, 08/04/26 – 08/11/26: From $1,689
    04

    Tu

  • SFO–LIR, 08/05/26 – 08/12/26: From $1,699
    05

    We

  • SFO–LIR, 08/06/26 – 08/13/26: From $1,689
    06

    Th

  • SFO–LIR, 08/07/26 – 08/14/26: From $1,689
    07

    Fr

  • SFO–LIR, 08/08/26 – 08/15/26: From $1,689
    08

    Sa

  • SFO–LIR, 08/09/26 – 08/16/26: From $1,699
    09

    Su

  • SFO–LIR, 08/10/26 – 08/17/26: From $935
    10

    Mo

  • SFO–LIR, 08/11/26 – 08/18/26: From $1,084
    11

    Tu

  • SFO–LIR, 08/12/26 – 08/19/26: From $772
    12

    We

  • SFO–LIR, 08/13/26 – 08/20/26: From $767
    13

    Th

  • SFO–LIR, 08/14/26 – 08/21/26: From $800
    14

    Fr

  • SFO–LIR, 08/15/26 – 08/22/26: From $1,160
    15

    Sa

  • SFO–LIR, 08/16/26 – 08/23/26: From $1,170
    16

    Su

  • SFO–LIR, 08/17/26 – 08/24/26: From $800
    17

    Mo

  • SFO–LIR, 08/18/26 – 08/25/26: From $767
    18

    Tu

  • SFO–LIR, 08/19/26 – 08/26/26: From $772
    19

    We

  • SFO–LIR, 08/20/26 – 08/27/26: From $1,099
    20

    Th

  • SFO–LIR, 08/21/26 – 08/28/26: From $701
    21

    Fr

  • SFO–LIR, 08/22/26 – 08/29/26: From $739
    22

    Sa

  • SFO–LIR, 08/23/26 – 08/29/26: From $766
    23

    Su

  • SFO–LIR, 08/24/26 – 08/31/26: From $868
    24

    Mo

  • SFO–LIR, 08/25/26 – 09/01/26: From $645
    25

    Tu

  • SFO–LIR, 08/26/26 – 09/02/26: From $650
    26

    We

  • SFO–LIR, 08/27/26 – 09/03/26: From $640
    27

    Th

  • SFO–LIR, 08/28/26 – 09/04/26: From $640
    28

    Fr

  • SFO–LIR, 08/29/26 – 09/05/26: From $640
    29

    Sa

    • range$640-$3,013

    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 San Francisco to Liberia (Costa Rica) flights

    $
    keyboard_arrow_down

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    11/27/26 - 12/04/26

    Round trip

    Economy

    from
    $598Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/05/26 - 10/12/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

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

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/15/26 - 10/22/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/22/26 - 10/29/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 hours ago

    San Francisco (SFO)to

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

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 2 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 San Francisco to Liberia (Costa Rica)

    Looking for lower fares on your trip from San Francisco 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 San Francisco to Liberia (Costa Rica)