Southwest® flights from Atlanta to St. Louis from $59

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Low fares from Atlanta to St. Louis

$

Atlanta (ATL)to

St. Louis (STL)
Depart: 09/26/2026

One-way

Basic

From
$59
Seen: 22 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 09/01/2026

One-way

Basic

From
$59
Seen: 14 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 09/22/2026

One-way

Basic

From
$59
Seen: 9 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 08/25/2026

One-way

Basic

From
$59
Seen: 14 minutes ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 08/26/2026

One-way

Basic

From
$59
Seen: 6 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 09/05/2026

One-way

Basic

From
$59
Seen: 11 hrs ago

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Explore flights from Atlanta to St. Louis

Aug 2026
From$59*
Seen: 14 minutes ago
One Way/Basic
Sep 2026
From$59*
Seen: 11 hrs ago
One Way/Basic
Oct 2026
From$59*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $397
Displaying fares for August-2026
  • ATL–STL, 08/01/2026: From $397
    01

    Sat

    AUG

  • ATL–STL, 08/02/2026: From $397
    02

    Sun

  • ATL–STL, 08/03/2026: From $397
    03

    Mon

  • ATL–STL, 08/04/2026: From $397
    04

    Tue

  • ATL–STL, 08/05/2026: From $397
    05

    Wed

  • ATL–STL, 08/06/2026: From $397
    06

    Thu

  • ATL–STL, 08/07/2026: From $353
    07

    Fri

  • ATL–STL, 08/08/2026: From $353
    08

    Sat

  • ATL–STL, 08/09/2026: From $353
    09

    Sun

  • ATL–STL, 08/10/2026: From $353
    10

    Mon

  • ATL–STL, 08/11/2026: From $353
    11

    Tue

  • ATL–STL, 08/12/2026: From $353
    12

    Wed

  • ATL–STL, 08/13/2026: From $353
    13

    Thu

  • ATL–STL, 08/14/2026: From $189
    14

    Fri

  • ATL–STL, 08/15/2026: From $99
    15

    Sat

  • ATL–STL, 08/16/2026: From $189
    16

    Sun

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

    Mon

  • ATL–STL, 08/18/2026: From $99
    18

    Tue

  • ATL–STL, 08/19/2026: From $99
    19

    Wed

  • ATL–STL, 08/20/2026: From $189
    20

    Thu

  • ATL–STL, 08/21/2026: From $89
    21

    Fri

  • ATL–STL, 08/22/2026: From $59
    22

    Sat

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

    Sun

  • ATL–STL, 08/24/2026: From $87
    24

    Mon

  • ATL–STL, 08/25/2026: From $59
    25

    Tue

  • ATL–STL, 08/26/2026: From $59
    26

    Wed

  • ATL–STL, 08/27/2026: From $87
    27

    Thu

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • ATL–STL, 08/29/2026: From $59
    29

    Sat

  • ATL–STL, 08/30/2026: From $69
    30

    Sun

  • ATL–STL, 08/31/2026: From $69
    31

    Mon

    • Range$59-$397

    *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:
    Hartsfield-Jackson Atlanta International Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    1 hour 43 minutes
    Distance:
    484 miles

    Route Information

    156† Weekly flights
    • 3‡ Nonstop flights per day Monday through Friday
    • 2‡ Nonstop flights on Saturday
    • 3‡ Nonstop flights on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from Atlanta to St. Louis is 1 hour 43 minutes.
    There are 156 weekly flights from Atlanta to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from Atlanta to St. Louis 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Atlanta to St. Louis 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly Atlanta 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 Atlanta 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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