American Airlines flights from Saint Louis to Barcelona

Recent searches for flights from Saint Louis to Barcelona

Sep 2026
From$575*
Updated: 3 hours ago
Round tripIEconomy
Oct 2026
From$575*
Updated: 3 hours ago
Round tripIEconomy
Nov 2026
From$575*
Updated: 3 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $575
cmp-daily-histogram-bars-legend-max-price-aria-label $1.2K
Displaying fares for September-2026
  • STL–BCN: cmp-view-offers-disclaimer. Find Offers
    14

    Mo

    SEP

  • 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 $1,155
    19

    Sa

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

    Su

  • STL–BCN, 09/21/26 – 09/28/26: From $714
    21

    Mo

  • STL–BCN, 09/22/26 – 09/29/26: From $575
    22

    Tu

  • STL–BCN, 09/23/26 – 09/30/26: From $766
    23

    We

  • STL–BCN, 09/24/26 – 10/01/26: From $625
    24

    Th

  • STL–BCN, 09/25/26 – 10/02/26: From $714
    25

    Fr

  • STL–BCN, 09/26/26 – 10/03/26: From $1,013
    26

    Sa

  • STL–BCN, 09/27/26 – 10/04/26: From $1,063
    27

    Su

  • STL–BCN, 09/28/26 – 10/05/26: From $640
    28

    Mo

  • STL–BCN, 09/29/26 – 10/06/26: From $575
    29

    Tu

  • STL–BCN, 09/30/26 – 10/07/26: From $766
    30

    We

  • STL–BCN, 10/01/26 – 10/08/26: From $865
    01

    Th

    OCT

  • STL–BCN, 10/02/26 – 10/09/26: From $1,003
    02

    Fr

  • STL–BCN, 10/03/26 – 10/10/26: From $964
    03

    Sa

  • STL–BCN, 10/04/26 – 10/11/26: From $865
    04

    Su

  • STL–BCN, 10/05/26 – 10/12/26: From $1,175
    05

    Mo

  • STL–BCN, 10/06/26 – 10/13/26: From $953
    06

    Tu

  • STL–BCN, 10/07/26 – 10/14/26: From $957
    07

    We

  • STL–BCN, 10/08/26 – 10/15/26: From $816
    08

    Th

  • STL–BCN, 10/09/26 – 10/16/26: From $1,049
    09

    Fr

  • STL–BCN, 10/10/26 – 10/26/26: From $1,111
    10

    Sa

  • STL–BCN, 10/11/26 – 10/18/26: From $816
    11

    Su

  • STL–BCN, 10/12/26 – 10/19/26: From $817
    12

    Mo

  • STL–BCN, 10/13/26 – 10/20/26: From $725
    13

    Tu

    • range$575-$1,175

    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

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    Saint Louis (STL)to

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

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

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

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

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

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

    Barcelona (BCN)
    09/22/26 - 09/29/26

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

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

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 hours ago

    Saint Louis (STL)to

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

    Round trip

    Economy

    from
    $575Fare subject to changes
    Updated: 3 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

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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.
    • 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