American Airlines flights from Saint Louis to Barcelona

Recent searches for flights from Saint Louis to Barcelona

Aug 2026
From$1,151*
Updated: 10 hours ago
Round tripIEconomy
Sep 2026
From$803*
Updated: 10 hours ago
Round tripIEconomy
Oct 2026
From$803*
Updated: 10 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $803
cmp-daily-histogram-bars-legend-max-price-aria-label $1.9K
Displaying fares for August-2026
  • STL–BCN: cmp-view-offers-disclaimer. Find Offers
    24

    Mo

    AUG

  • STL–BCN, 08/25/26 – 09/01/26: From $1,151
    25

    Tu

  • STL–BCN, 08/26/26 – 09/02/26: From $1,327
    26

    We

  • STL–BCN, 08/27/26 – 09/03/26: From $1,397
    27

    Th

  • STL–BCN, 08/28/26 – 09/04/26: From $1,397
    28

    Fr

  • STL–BCN, 08/29/26 – 09/05/26: From $1,350
    29

    Sa

  • STL–BCN, 08/30/26 – 09/06/26: From $1,280
    30

    Su

  • STL–BCN, 08/31/26 – 09/07/26: From $1,622
    31

    Mo

  • STL–BCN, 09/01/26 – 09/08/26: From $1,540
    01

    Tu

    SEP

  • STL–BCN, 09/02/26 – 09/09/26: From $1,403
    02

    We

  • STL–BCN, 09/03/26 – 09/10/26: From $1,463
    03

    Th

  • STL–BCN, 09/04/26 – 09/11/26: From $1,872
    04

    Fr

  • STL–BCN, 09/05/26 – 09/12/26: From $1,503
    05

    Sa

  • STL–BCN, 09/06/26 – 09/13/26: From $1,104
    06

    Su

  • STL–BCN, 09/07/26 – 09/14/26: From $1,104
    07

    Mo

  • STL–BCN, 09/08/26 – 09/15/26: From $1,054
    08

    Tu

  • STL–BCN, 09/09/26 – 09/16/26: From $1,054
    09

    We

  • STL–BCN, 09/10/26 – 09/17/26: From $1,114
    10

    Th

  • STL–BCN, 09/11/26 – 09/18/26: From $1,114
    11

    Fr

  • STL–BCN, 09/12/26 – 09/19/26: From $1,164
    12

    Sa

  • STL–BCN, 09/13/26 – 09/20/26: From $1,104
    13

    Su

  • STL–BCN, 09/14/26 – 09/21/26: From $1,104
    14

    Mo

  • STL–BCN, 09/15/26 – 09/22/26: From $1,054
    15

    Tu

  • STL–BCN, 09/16/26 – 09/23/26: From $1,054
    16

    We

  • STL–BCN, 09/17/26 – 09/24/26: From $1,007
    17

    Th

  • STL–BCN, 09/18/26 – 09/25/26: From $1,007
    18

    Fr

  • STL–BCN, 09/19/26 – 09/26/26: From $1,057
    19

    Sa

  • STL–BCN, 09/20/26 – 09/27/26: From $1,007
    20

    Su

  • STL–BCN, 09/21/26 – 09/28/26: From $853
    21

    Mo

  • STL–BCN, 09/22/26 – 09/29/26: From $803
    22

    Tu

  • STL–BCN, 09/23/26 – 09/30/26: From $803
    23

    We

    • range$803-$1,872

    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 Barcelona flights

    $
    keyboard_arrow_down

    Saint Louis (STL)to

    Barcelona (BCN)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $773Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    12/08/26 - 12/15/26

    Round trip

    Economy

    from
    $773Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    12/09/26 - 12/16/26

    Round trip

    Economy

    from
    $773Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $778Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    09/23/26 - 09/30/26

    Round trip

    Economy

    from
    $803Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $803Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $803Fare subject to changes
    Updated: 10 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $803Fare subject to changes
    Updated: 10 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 Barcelona

    Looking for lower fares on your trip from Saint Louis to Barcelona? 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 Barcelona