American Airlines flights from Baltimore to Saint Louis

Recent searches for flights from Baltimore to Saint Louis

cmp-daily-histogram-bars-legend-min-price-aria-label $275
cmp-daily-histogram-bars-legend-max-price-aria-label $499
Displaying fares for September-2026
  • BWI–STL: cmp-view-offers-disclaimer. Find Offers
    15

    Tu

    SEP

  • BWI–STL, 09/16/26 – 09/23/26: From $391
    16

    We

  • BWI–STL, 09/17/26 – 09/24/26: From $451
    17

    Th

  • BWI–STL, 09/18/26 – 09/26/26: From $443
    18

    Fr

  • BWI–STL, 09/19/26 – 09/26/26: From $391
    19

    Sa

  • BWI–STL, 09/20/26 – 09/27/26: From $473
    20

    Su

  • BWI–STL, 09/21/26 – 09/28/26: From $451
    21

    Mo

  • BWI–STL, 09/22/26 – 09/29/26: From $391
    22

    Tu

  • BWI–STL, 09/23/26 – 09/30/26: From $391
    23

    We

  • BWI–STL, 09/24/26 – 10/01/26: From $451
    24

    Th

  • BWI–STL, 09/25/26 – 10/02/26: From $451
    25

    Fr

  • BWI–STL, 09/26/26 – 10/03/26: From $391
    26

    Sa

  • BWI–STL, 09/27/26 – 10/04/26: From $451
    27

    Su

  • BWI–STL, 09/28/26 – 10/05/26: From $451
    28

    Mo

  • BWI–STL, 09/29/26 – 10/06/26: From $391
    29

    Tu

  • BWI–STL, 09/30/26 – 10/07/26: From $391
    30

    We

  • BWI–STL, 10/01/26 – 10/08/26: From $441
    01

    Th

    OCT

  • BWI–STL, 10/02/26 – 10/09/26: From $499
    02

    Fr

  • BWI–STL, 10/03/26 – 10/10/26: From $391
    03

    Sa

  • BWI–STL, 10/04/26 – 10/11/26: From $451
    04

    Su

  • BWI–STL, 10/05/26 – 10/09/26: From $420
    05

    Mo

  • BWI–STL, 10/06/26 – 10/13/26: From $275
    06

    Tu

  • BWI–STL, 10/07/26 – 10/14/26: From $275
    07

    We

  • BWI–STL, 10/08/26 – 10/15/26: From $340
    08

    Th

  • BWI–STL, 10/09/26 – 10/13/26: From $313
    09

    Fr

  • BWI–STL, 10/10/26 – 10/17/26: From $275
    10

    Sa

  • BWI–STL, 10/11/26 – 10/18/26: From $427
    11

    Su

  • BWI–STL, 10/12/26 – 10/19/26: From $313
    12

    Mo

  • BWI–STL: cmp-view-offers-disclaimer. Find Offers
    13

    Tu

  • BWI–STL: cmp-view-offers-disclaimer. Find Offers
    14

    We

  • range$275-$499

    Find deals on Baltimore to Saint Louis flights

    $
    keyboard_arrow_down

    Baltimore (BWI)to

    Saint Louis (STL)
    10/10/26 - 10/17/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    12/05/26 - 12/12/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 hours ago

    Baltimore (BWI)to

    Saint Louis (STL)
    11/24/26 - 12/01/26

    Round trip

    Economy

    from
    $275Fare subject to changes
    Updated: 6 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.

    Citi / AAdvantage credit card offer.