American Airlines flights from Saint Louis to Detroit

Recent searches for flights from Saint Louis to Detroit

Sep 2026
From$361*
Updated: 8 hours ago
Round tripIEconomy
Oct 2026
From$361*
Updated: 8 hours ago
Round tripIEconomy
Nov 2026
From$361*
Updated: 8 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $361
cmp-daily-histogram-bars-legend-max-price-aria-label $796
Displaying fares for September-2026
  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    05

    Sa

    SEP

  • STL–DTW, 09/06/26 – 09/13/26: From $796
    06

    Su

  • STL–DTW, 09/07/26 – 09/14/26: From $796
    07

    Mo

  • STL–DTW, 09/08/26 – 09/15/26: From $796
    08

    Tu

  • STL–DTW, 09/09/26 – 09/16/26: From $796
    09

    We

  • STL–DTW, 09/10/26 – 09/17/26: From $796
    10

    Th

  • STL–DTW, 09/11/26 – 09/18/26: From $796
    11

    Fr

  • STL–DTW, 09/12/26 – 09/19/26: From $642
    12

    Sa

  • STL–DTW, 09/13/26 – 09/20/26: From $642
    13

    Su

  • STL–DTW, 09/14/26 – 09/21/26: From $642
    14

    Mo

  • STL–DTW, 09/15/26 – 09/22/26: From $642
    15

    Tu

  • STL–DTW, 09/16/26 – 09/23/26: From $642
    16

    We

  • STL–DTW, 09/17/26 – 09/24/26: From $642
    17

    Th

  • STL–DTW, 09/18/26 – 09/25/26: From $642
    18

    Fr

  • STL–DTW, 09/19/26 – 09/26/26: From $428
    19

    Sa

  • STL–DTW, 09/20/26 – 09/27/26: From $453
    20

    Su

  • STL–DTW, 09/21/26 – 09/28/26: From $428
    21

    Mo

  • STL–DTW, 09/22/26 – 09/29/26: From $428
    22

    Tu

  • STL–DTW, 09/23/26 – 09/30/26: From $428
    23

    We

  • STL–DTW, 09/24/26 – 10/01/26: From $428
    24

    Th

  • STL–DTW, 09/25/26 – 10/02/26: From $428
    25

    Fr

  • STL–DTW, 09/26/26 – 10/03/26: From $361
    26

    Sa

  • STL–DTW, 09/27/26 – 10/04/26: From $411
    27

    Su

  • STL–DTW, 09/28/26 – 10/05/26: From $361
    28

    Mo

  • STL–DTW, 09/29/26 – 10/06/26: From $361
    29

    Tu

  • STL–DTW, 09/30/26 – 10/07/26: From $361
    30

    We

  • STL–DTW, 10/01/26 – 10/08/26: From $361
    01

    Th

    OCT

  • STL–DTW, 10/02/26 – 10/09/26: From $361
    02

    Fr

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    03

    Sa

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    04

    Su

    • range$361-$796

    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 Detroit flights

    $
    keyboard_arrow_down

    Saint Louis (STL)to

    Detroit (DTW)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    10/09/26 - 10/16/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    09/28/26 - 10/05/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 hours ago

    Saint Louis (STL)to

    Detroit (DTW)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $361Fare subject to changes
    Updated: 8 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 Detroit

    Looking for lower fares on your trip from Saint Louis to Detroit? 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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    American Airlines flights from Saint Louis to Detroit