American Airlines flights from Saint Louis to San Jose, CR

Recent searches for flights from Saint Louis to San Jose, CR

Aug 2026
From$743*
Updated: 7 hours ago
Round tripIEconomy
Sep 2026
From$477*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$466*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $488
cmp-daily-histogram-bars-legend-max-price-aria-label $954
Displaying fares for August-2026
  • STL–SJO: cmp-view-offers-disclaimer. Find Offers
    23

    Su

    AUG

  • STL–SJO, 08/24/26 – 08/31/26: From $954
    24

    Mo

  • STL–SJO, 08/25/26 – 09/01/26: From $893
    25

    Tu

  • STL–SJO, 08/26/26 – 09/02/26: From $893
    26

    We

  • STL–SJO, 08/27/26 – 09/03/26: From $793
    27

    Th

  • STL–SJO, 08/28/26 – 09/04/26: From $793
    28

    Fr

  • STL–SJO, 08/29/26 – 09/05/26: From $793
    29

    Sa

  • STL–SJO, 08/30/26 – 09/06/26: From $743
    30

    Su

  • STL–SJO, 08/31/26 – 09/07/26: From $858
    31

    Mo

  • STL–SJO, 09/01/26 – 09/08/26: From $768
    01

    Tu

    SEP

  • STL–SJO, 09/02/26 – 09/09/26: From $904
    02

    We

  • STL–SJO, 09/03/26 – 09/10/26: From $768
    03

    Th

  • STL–SJO, 09/04/26 – 09/11/26: From $858
    04

    Fr

  • STL–SJO, 09/05/26 – 09/12/26: From $929
    05

    Sa

  • STL–SJO, 09/06/26 – 09/13/26: From $703
    06

    Su

  • STL–SJO, 09/07/26 – 09/14/26: From $698
    07

    Mo

  • STL–SJO, 09/08/26 – 09/15/26: From $673
    08

    Tu

  • STL–SJO, 09/09/26 – 09/16/26: From $607
    09

    We

  • STL–SJO, 09/10/26 – 09/17/26: From $602
    10

    Th

  • STL–SJO, 09/11/26 – 09/18/26: From $607
    11

    Fr

  • STL–SJO, 09/12/26 – 09/19/26: From $648
    12

    Sa

  • STL–SJO, 09/13/26 – 09/20/26: From $512
    13

    Su

  • STL–SJO, 09/14/26 – 09/21/26: From $496
    14

    Mo

  • STL–SJO, 09/15/26 – 09/22/26: From $565
    15

    Tu

  • STL–SJO, 09/16/26 – 09/23/26: From $512
    16

    We

  • STL–SJO, 09/17/26 – 09/24/26: From $496
    17

    Th

  • STL–SJO, 09/18/26 – 09/25/26: From $496
    18

    Fr

  • STL–SJO, 09/19/26 – 09/26/26: From $505
    19

    Sa

  • STL–SJO, 09/20/26 – 09/27/26: From $553
    20

    Su

  • STL–SJO, 09/21/26 – 09/28/26: From $496
    21

    Mo

  • STL–SJO, 09/22/26 – 09/29/26: From $488
    22

    Tu

    • range$488-$954

    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 Saint Louis to San Jose, CR flights

    $
    keyboard_arrow_down

    Saint Louis (STL)to

    San Jose, CR (SJO)
    02/10/27 - 02/17/27

    Round trip

    Economy

    from
    $444Fare subject to changes
    Updated: 18 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $466Fare subject to changes
    Updated: 7 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $466Fare subject to changes
    Updated: 7 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $466Fare subject to changes
    Updated: 7 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $466Fare subject to changes
    Updated: 7 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $466Fare subject to changes
    Updated: 7 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $466Fare subject to changes
    Updated: 7 hours ago

    Saint Louis (STL)to

    San Jose, CR (SJO)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $466Fare 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 Saint Louis to San Jose, CR

    Looking for lower fares on your trip from Saint Louis to San Jose, CR? 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 Saint Louis to San Jose, CR