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

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

Sep 2026
From$701*
Updated: 4 hours ago
Round tripIEconomy
Oct 2026
From$640*
Updated: 4 hours ago
Round tripIEconomy
Nov 2026
From$640*
Updated: 4 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $640
cmp-daily-histogram-bars-legend-max-price-aria-label $2.7K
Displaying fares for September-2026
  • SFO–LIR, 09/08/26 – 09/15/26: From $2,715
    08

    Tu

    SEP

  • SFO–LIR, 09/09/26 – 09/16/26: From $772
    09

    We

  • SFO–LIR, 09/10/26 – 09/17/26: From $762
    10

    Th

  • SFO–LIR, 09/11/26 – 09/18/26: From $767
    11

    Fr

  • SFO–LIR, 09/12/26 – 09/19/26: From $762
    12

    Sa

  • SFO–LIR, 09/13/26 – 09/20/26: From $767
    13

    Su

  • SFO–LIR, 09/14/26 – 09/21/26: From $762
    14

    Mo

  • SFO–LIR, 09/15/26 – 09/22/26: From $767
    15

    Tu

  • SFO–LIR, 09/16/26 – 09/23/26: From $772
    16

    We

  • SFO–LIR, 09/17/26 – 09/24/26: From $767
    17

    Th

  • SFO–LIR, 09/18/26 – 09/25/26: From $767
    18

    Fr

  • SFO–LIR, 09/19/26 – 09/26/26: From $762
    19

    Sa

  • SFO–LIR, 09/20/26 – 09/27/26: From $767
    20

    Su

  • SFO–LIR, 09/21/26 – 09/28/26: From $767
    21

    Mo

  • SFO–LIR, 09/22/26 – 09/29/26: From $706
    22

    Tu

  • SFO–LIR, 09/23/26 – 09/30/26: From $1,034
    23

    We

  • SFO–LIR, 09/24/26 – 10/01/26: From $701
    24

    Th

  • SFO–LIR, 09/25/26 – 10/02/26: From $701
    25

    Fr

  • SFO–LIR, 09/26/26 – 10/03/26: From $701
    26

    Sa

  • SFO–LIR, 09/27/26 – 10/04/26: From $706
    27

    Su

  • SFO–LIR, 09/28/26 – 10/05/26: From $706
    28

    Mo

  • SFO–LIR, 09/29/26 – 10/06/26: From $739
    29

    Tu

  • SFO–LIR, 09/30/26 – 10/07/26: From $744
    30

    We

  • SFO–LIR, 10/01/26 – 10/08/26: From $640
    01

    Th

    OCT

  • SFO–LIR, 10/02/26 – 10/09/26: From $640
    02

    Fr

  • SFO–LIR, 10/03/26 – 10/10/26: From $645
    03

    Sa

  • SFO–LIR, 10/04/26 – 10/11/26: From $711
    04

    Su

  • SFO–LIR, 10/05/26 – 10/12/26: From $645
    05

    Mo

  • SFO–LIR, 10/06/26 – 10/13/26: From $645
    06

    Tu

  • SFO–LIR, 10/07/26 – 10/14/26: From $853
    07

    We

    • range$640-$2,715

    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)
    01/05/27 - 01/12/27

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/16/26 - 10/23/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    10/30/26 - 11/06/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    01/07/27 - 01/14/27

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    12/03/26 - 12/10/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

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

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    Liberia (Costa Rica) (LIR)
    11/12/26 - 11/19/26

    Round trip

    Economy

    from
    $640Fare subject to changes
    Updated: 4 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

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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.
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    Discover how Main Cabin Extra can enhance your trip.

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