American Airlines flights from Saint Louis to Killeen

Recent searches for flights from Saint Louis to Killeen

Aug 2026
From$521*
Updated: 13 hours ago
Round tripIEconomy
Sep 2026
From$279*
Updated: 13 hours ago
Round tripIEconomy
Oct 2026
From$279*
Updated: 13 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $289
cmp-daily-histogram-bars-legend-max-price-aria-label $604
Displaying fares for August-2026
  • STL–GRK, 08/29/26 – 09/05/26: From $521
    29

    Sa

    AUG

  • STL–GRK, 08/30/26 – 09/06/26: From $604
    30

    Su

  • STL–GRK, 08/31/26 – 09/07/26: From $604
    31

    Mo

  • STL–GRK, 09/01/26 – 09/08/26: From $521
    01

    Tu

    SEP

  • STL–GRK, 09/02/26 – 09/09/26: From $521
    02

    We

  • STL–GRK, 09/03/26 – 09/10/26: From $604
    03

    Th

  • STL–GRK, 09/04/26 – 09/11/26: From $513
    04

    Fr

  • STL–GRK, 09/05/26 – 09/12/26: From $414
    05

    Sa

  • STL–GRK, 09/06/26 – 09/13/26: From $414
    06

    Su

  • STL–GRK, 09/07/26 – 09/14/26: From $513
    07

    Mo

  • STL–GRK, 09/08/26 – 09/15/26: From $444
    08

    Tu

  • STL–GRK, 09/09/26 – 09/16/26: From $414
    09

    We

  • STL–GRK, 09/10/26 – 09/17/26: From $414
    10

    Th

  • STL–GRK, 09/11/26 – 09/18/26: From $333
    11

    Fr

  • STL–GRK, 09/12/26 – 09/19/26: From $333
    12

    Sa

  • STL–GRK, 09/13/26 – 09/20/26: From $333
    13

    Su

  • STL–GRK, 09/14/26 – 09/21/26: From $514
    14

    Mo

  • STL–GRK, 09/15/26 – 09/22/26: From $333
    15

    Tu

  • STL–GRK, 09/16/26 – 09/23/26: From $333
    16

    We

  • STL–GRK, 09/17/26 – 09/24/26: From $333
    17

    Th

  • STL–GRK, 09/18/26 – 09/25/26: From $299
    18

    Fr

  • STL–GRK, 09/19/26 – 09/26/26: From $299
    19

    Sa

  • STL–GRK, 09/20/26 – 09/27/26: From $299
    20

    Su

  • STL–GRK, 09/21/26 – 09/28/26: From $299
    21

    Mo

  • STL–GRK, 09/22/26 – 09/29/26: From $289
    22

    Tu

  • STL–GRK, 09/23/26 – 09/30/26: From $289
    23

    We

  • STL–GRK, 09/24/26 – 10/01/26: From $299
    24

    Th

  • STL–GRK: cmp-view-offers-disclaimer. Find Offers
    25

    Fr

  • STL–GRK: cmp-view-offers-disclaimer. Find Offers
    26

    Sa

  • STL–GRK: cmp-view-offers-disclaimer. Find Offers
    27

    Su

  • STL–GRK, 09/28/26 – 10/05/26: From $299
    28

    Mo

    • range$289-$604

    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 Killeen flights

    $
    keyboard_arrow_down

    Saint Louis (STL)to

    Killeen (GRK)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    09/30/26 - 10/07/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 hours ago

    Saint Louis (STL)to

    Killeen (GRK)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $279Fare subject to changes
    Updated: 13 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 Killeen

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