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: 10/03/2026

One-way

Basic

From
$59
Seen: 12 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 12/16/2026

One-way

Basic

From
$59
Seen: 11 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 10/17/2026

One-way

Basic

From
$59
Seen: 2 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 10/14/2026

One-way

Basic

From
$59
Seen: 18 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 10/06/2026

One-way

Basic

From
$59
Seen: 19 hrs ago

Atlanta (ATL)to

St. Louis (STL)
Depart: 10/13/2026

One-way

Basic

From
$59
Seen: 10 hrs ago

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Explore flights from Atlanta to St. Louis

Sep 2026
From$99*
Seen: 12 hrs ago
One Way/Basic
Oct 2026
From$59*
Seen: 18 hrs ago
One Way/Basic
Nov 2026
From$59*
Seen: 25 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $59
cmp-daily-histogram-bars-legend-max-price-aria-label $327
Displaying fares for September-2026
  • ATL–STL, 09/10/2026: From $327
    10

    Thu

    SEP

  • ATL–STL, 09/11/2026: From $327
    11

    Fri

  • ATL–STL, 09/12/2026: From $327
    12

    Sat

  • ATL–STL, 09/13/2026: From $327
    13

    Sun

  • ATL–STL, 09/14/2026: From $327
    14

    Mon

  • ATL–STL, 09/15/2026: From $327
    15

    Tue

  • ATL–STL, 09/16/2026: From $327
    16

    Wed

  • ATL–STL, 09/17/2026: From $327
    17

    Thu

  • ATL–STL, 09/18/2026: From $327
    18

    Fri

  • ATL–STL, 09/19/2026: From $327
    19

    Sat

  • ATL–STL, 09/20/2026: From $327
    20

    Sun

  • ATL–STL, 09/21/2026: From $327
    21

    Mon

  • ATL–STL, 09/22/2026: From $327
    22

    Tue

  • ATL–STL, 09/23/2026: From $99
    23

    Wed

  • ATL–STL, 09/24/2026: From $179
    24

    Thu

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    25

    Fri

  • ATL–STL, 09/26/2026: From $99
    26

    Sat

  • ATL–STL, 09/27/2026: From $179
    27

    Sun

  • ATL–STL, 09/28/2026: From $179
    28

    Mon

  • ATL–STL, 09/29/2026: From $99
    29

    Tue

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

    Wed

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • ATL–STL, 10/02/2026: From $86
    02

    Fri

  • ATL–STL, 10/03/2026: From $59
    03

    Sat

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

    Sun

  • ATL–STL, 10/05/2026: From $69
    05

    Mon

  • ATL–STL, 10/06/2026: From $59
    06

    Tue

  • ATL–STL, 10/07/2026: From $59
    07

    Wed

  • ATL–STL, 10/08/2026: From $69
    08

    Thu

  • ATL–STL, 10/09/2026: From $86
    09

    Fri

    • Range$59-$327

    *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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