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

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Low fares from Milwaukee to St. Louis

$

Milwaukee (MKE)to

St. Louis (STL)
Depart: 11/26/2026

One-way

Basic

From
$128
Seen: 22 hrs ago

Milwaukee (MKE)to

St. Louis (STL)
Depart: 11/21/2026

One-way

Basic

From
$128
Seen: 19 hrs ago

Milwaukee (MKE)to

St. Louis (STL)
Depart: 11/13/2026

One-way

Basic

From
$128
Seen: 19 hrs ago

Milwaukee (MKE)to

St. Louis (STL)
Depart: 12/08/2026

One-way

Basic

From
$128
Seen: 17 hrs ago

Milwaukee (MKE)to

St. Louis (STL)
Depart: 11/16/2026

One-way

Basic

From
$128
Seen: 16 hrs ago

Milwaukee (MKE)to

St. Louis (STL)
Depart: 12/10/2026

One-way

Basic

From
$128
Seen: 14 hrs ago

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Explore flights from Milwaukee to St. Louis

Oct 2026
From$264*
Seen: 14 hrs ago
One Way/Basic
Nov 2026
From$128*
Seen: 23 hrs ago
One Way/Basic
Dec 2026
From$128*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $128
cmp-daily-histogram-bars-legend-max-price-aria-label $391
Displaying fares for October-2026
  • MKE–STL, 10/21/2026: From $391
    21

    Wed

    OCT

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

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

    Fri

  • MKE–STL, 10/24/2026: From $269
    24

    Sat

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    25

    Sun

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

    Mon

  • MKE–STL, 10/27/2026: From $264
    27

    Tue

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    28

    Wed

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    29

    Thu

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    30

    Fri

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

  • MKE–STL, 11/01/2026: From $264
    01

    Sun

    NOV

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    02

    Mon

  • MKE–STL, 11/03/2026: From $198
    03

    Tue

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    04

    Wed

  • MKE–STL, 11/05/2026: From $198
    05

    Thu

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    06

    Fri

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

    Sat

  • MKE–STL, 11/08/2026: From $198
    08

    Sun

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

    Mon

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    10

    Tue

  • MKE–STL, 11/11/2026: From $128
    11

    Wed

  • MKE–STL, 11/12/2026: From $128
    12

    Thu

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

    Fri

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

    Sat

  • MKE–STL, 11/15/2026: From $128
    15

    Sun

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

    Mon

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

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

    Wed

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    19

    Thu

  • MKE–STL: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

    • Range$128-$391

    *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:
    General Mitchell Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    1 hour 19 minutes
    Distance:
    317 miles

    Questions we hear the most

    The average flight time from Milwaukee to St. Louis is 1 hour 19 minutes.
    There are 128 weekly flights from Milwaukee to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from Milwaukee to St. Louis 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Milwaukee to St. Louis once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly Milwaukee to St. Louis with Southwest, check out our Low Fare Calendar.
    You can rent a car at Lambert-St Louis Int'l Airport book yours with your flight.
    Yes! Flights from Milwaukee to St. Louis—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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