Southwest® flights from Austin to St. Louis from $132

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Low fares from Austin to St. Louis

$

Austin (AUS)to

St. Louis (STL)
Depart: 01/23/2027

One-way

Basic

From
$132
Seen: 5 hrs ago

Austin (AUS)to

St. Louis (STL)
Depart: 01/16/2027

One-way

Basic

From
$132
Seen: 6 hrs ago

Austin (AUS)to

St. Louis (STL)
Depart: 12/02/2026

One-way

Basic

From
$132
Seen: 18 hrs ago

Austin (AUS)to

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

One-way

Basic

From
$132
Seen: 23 hrs ago

Austin (AUS)to

St. Louis (STL)
Depart: 12/05/2026

One-way

Basic

From
$132
Seen: 3 hrs ago

Austin (AUS)to

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

One-way

Basic

From
$132
Seen: 1 hour ago

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Explore flights from Austin to St. Louis

Nov 2026
From$204*
Seen: 13 hrs ago
One Way/Basic
Dec 2026
From$132*
Seen: 23 hrs ago
One Way/Basic
Jan 2027
From$132*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $132
cmp-daily-histogram-bars-legend-max-price-aria-label $434
Displaying fares for November-2026
  • AUS–STL, 11/12/2026: From $429
    12

    Thu

    NOV

  • AUS–STL, 11/13/2026: From $429
    13

    Fri

  • AUS–STL, 11/14/2026: From $434
    14

    Sat

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

    Sun

  • AUS–STL, 11/16/2026: From $434
    16

    Mon

  • AUS–STL, 11/17/2026: From $434
    17

    Tue

  • AUS–STL, 11/18/2026: From $310
    18

    Wed

  • AUS–STL, 11/19/2026: From $310
    19

    Thu

  • AUS–STL, 11/20/2026: From $305
    20

    Fri

  • AUS–STL, 11/21/2026: From $310
    21

    Sat

  • AUS–STL, 11/22/2026: From $305
    22

    Sun

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

    Mon

  • AUS–STL, 11/24/2026: From $305
    24

    Tue

  • AUS–STL, 11/25/2026: From $209
    25

    Wed

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

    Thu

  • AUS–STL, 11/27/2026: From $204
    27

    Fri

  • AUS–STL, 11/28/2026: From $239
    28

    Sat

  • AUS–STL, 11/29/2026: From $275
    29

    Sun

  • AUS–STL, 11/30/2026: From $234
    30

    Mon

  • AUS–STL, 12/01/2026: From $209
    01

    Tue

    DEC

  • AUS–STL, 12/02/2026: From $132
    02

    Wed

  • AUS–STL, 12/03/2026: From $152
    03

    Thu

  • AUS–STL, 12/04/2026: From $167
    04

    Fri

  • AUS–STL, 12/05/2026: From $132
    05

    Sat

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

    Sun

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

    Mon

  • AUS–STL, 12/08/2026: From $132
    08

    Tue

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

    Wed

  • AUS–STL, 12/10/2026: From $152
    10

    Thu

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

    Fri

    • Range$132-$434

    *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:
    Austin-Bergstrom International Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    2 hours 5 minutes
    Distance:
    721 miles

    Questions we hear the most

    The average flight time from Austin to St. Louis is 2 hours 5 minutes.
    There are 156 weekly flights from Austin to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from Austin to St. Louis 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Austin to St. Louis once per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly Austin 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 Austin 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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