Southwest® flights from St. Louis to Detroit from $128

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Low fares from St. Louis to Detroit

$

St. Louis (STL)to

Detroit (DTW)
Depart: 12/15/2026

One-way

Basic

From
$128
Seen: 14 hrs ago

St. Louis (STL)to

Detroit (DTW)
Depart: 12/31/2026

One-way

Basic

From
$128
Seen: 16 hrs ago

St. Louis (STL)to

Detroit (DTW)
Depart: 01/13/2027

One-way

Basic

From
$128
Seen: 17 hrs ago

St. Louis (STL)to

Detroit (DTW)
Depart: 12/25/2026

One-way

Basic

From
$128
Seen: 13 hrs ago

St. Louis (STL)to

Detroit (DTW)
Depart: 11/16/2026

One-way

Basic

From
$128
Seen: 14 hrs ago

St. Louis (STL)to

Detroit (DTW)
Depart: 11/13/2026

One-way

Basic

From
$128
Seen: 4 hrs ago

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Explore flights from St. Louis to Detroit

Oct 2026
From$370*
Seen: 10 hrs ago
One Way/Basic
Nov 2026
From$128*
Seen: 8 hrs ago
One Way/Basic
Dec 2026
From$128*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $128
cmp-daily-histogram-bars-legend-max-price-aria-label $447
Displaying fares for October-2026
  • STL–DTW, 10/22/2026: From $447
    22

    Thu

    OCT

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • STL–DTW, 10/24/2026: From $447
    24

    Sat

  • STL–DTW, 10/25/2026: From $447
    25

    Sun

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

    Mon

  • STL–DTW, 10/27/2026: From $447
    27

    Tue

  • STL–DTW, 10/28/2026: From $447
    28

    Wed

  • STL–DTW, 10/29/2026: From $370
    29

    Thu

  • STL–DTW, 10/30/2026: From $370
    30

    Fri

  • STL–DTW, 10/31/2026: From $370
    31

    Sat

  • STL–DTW, 11/01/2026: From $370
    01

    Sun

    NOV

  • STL–DTW, 11/02/2026: From $370
    02

    Mon

  • STL–DTW, 11/03/2026: From $370
    03

    Tue

  • STL–DTW, 11/04/2026: From $370
    04

    Wed

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    05

    Thu

  • STL–DTW, 11/06/2026: From $258
    06

    Fri

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

  • STL–DTW, 11/08/2026: From $258
    08

    Sun

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    09

    Mon

  • STL–DTW, 11/10/2026: From $128
    10

    Tue

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

  • STL–DTW, 11/12/2026: From $138
    12

    Thu

  • STL–DTW, 11/13/2026: From $128
    13

    Fri

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

    Sat

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    15

    Sun

  • STL–DTW, 11/16/2026: From $128
    16

    Mon

  • STL–DTW, 11/17/2026: From $128
    17

    Tue

  • STL–DTW: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • STL–DTW, 11/19/2026: From $138
    19

    Thu

  • STL–DTW, 11/20/2026: From $216
    20

    Fri

  • STL–DTW, 11/21/2026: From $128
    21

    Sat

    • Range$128-$447

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Lambert-St Louis Int'l Airport
    Arriving at:
    Wayne County Airport
    Average flight time:
    1 hour 30 minutes
    Distance:
    440 miles

    Questions we hear the most

    The average flight time from St. Louis to Detroit is 1 hour 30 minutes.
    There are 135 weekly flights from St. Louis to Detroit on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Detroit once per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Detroit once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Detroit with Southwest, check out our Low Fare Calendar.
    You can rent a car at Wayne County Airport book yours with your flight.
    Yes! Flights from St. Louis to Detroit—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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