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

Promo Code

Low fares from St. Louis to Atlanta

$

St. Louis (STL)to

Atlanta (ATL)
Depart: 10/21/2026

One-way

Basic

From
$59
Seen: 19 hrs ago

St. Louis (STL)to

Atlanta (ATL)
Depart: 10/14/2026

One-way

Basic

From
$59
Seen: 18 hrs ago

St. Louis (STL)to

Atlanta (ATL)
Depart: 09/16/2026

One-way

Basic

From
$59
Seen: 11 hrs ago

St. Louis (STL)to

Atlanta (ATL)
Depart: 09/02/2026

One-way

Basic

From
$59
Seen: 19 hrs ago

St. Louis (STL)to

Atlanta (ATL)
Depart: 09/19/2026

One-way

Basic

From
$59
Seen: 23 hrs ago

St. Louis (STL)to

Atlanta (ATL)
Depart: 09/26/2026

One-way

Basic

From
$59
Seen: 16 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

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Explore flights from St. Louis to Atlanta

Jul 2026
From$397*
Seen: 15 hrs ago
One Way/Basic
Aug 2026
From$69*
Seen: 21 hrs ago
One Way/Basic
Sep 2026
From$59*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $69
cmp-daily-histogram-bars-legend-max-price-aria-label $397
Displaying fares for July-2026
  • STL–ATL: cmp-view-offers-disclaimer. Find Offers
    29

    Wed

    JUL

  • STL–ATL, 07/30/2026: From $397
    30

    Thu

  • STL–ATL, 07/31/2026: From $397
    31

    Fri

  • STL–ATL, 08/01/2026: From $397
    01

    Sat

    AUG

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

    Sun

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

    Mon

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

    Tue

  • STL–ATL, 08/05/2026: From $353
    05

    Wed

  • STL–ATL, 08/06/2026: From $353
    06

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

  • STL–ATL, 08/11/2026: From $99
    11

    Tue

  • STL–ATL, 08/12/2026: From $109
    12

    Wed

  • STL–ATL, 08/13/2026: From $199
    13

    Thu

  • STL–ATL, 08/14/2026: From $199
    14

    Fri

  • STL–ATL, 08/15/2026: From $109
    15

    Sat

  • STL–ATL: cmp-view-offers-disclaimer. Find Offers
    16

    Sun

  • STL–ATL, 08/17/2026: From $199
    17

    Mon

  • STL–ATL, 08/18/2026: From $109
    18

    Tue

  • STL–ATL, 08/19/2026: From $69
    19

    Wed

  • STL–ATL, 08/20/2026: From $69
    20

    Thu

  • STL–ATL, 08/21/2026: From $99
    21

    Fri

  • STL–ATL, 08/22/2026: From $69
    22

    Sat

  • STL–ATL, 08/23/2026: From $99
    23

    Sun

  • STL–ATL, 08/24/2026: From $69
    24

    Mon

  • STL–ATL, 08/25/2026: From $69
    25

    Tue

  • STL–ATL, 08/26/2026: From $69
    26

    Wed

  • STL–ATL, 08/27/2026: From $69
    27

    Thu

  • STL–ATL, 08/28/2026: From $79
    28

    Fri

    • Range$69-$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:
    Lambert-St Louis Int'l Airport
    Arriving at:
    Hartsfield-Jackson Atlanta International Airport
    Average flight time:
    1 hour 31 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 St. Louis to Atlanta is 1 hour 31 minutes.
    There are 156 weekly flights from St. Louis to Atlanta on Southwest Airlines.
    Yes, Southwest flies nonstop from St. Louis to Atlanta 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from St. Louis to Atlanta 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly St. Louis to Atlanta with Southwest, check out our Low Fare Calendar.
    You can rent a car at Hartsfield-Jackson Atlanta International Airport book yours with your flight.
    Yes! Flights from St. Louis to Atlanta—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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