Flights from Atlanta, GA to St. Louis, MO

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Best Deals on Flights From Atlanta, GA (ATL) to St. Louis, MO (STL)

Aug 2026
from$37*
Last seen: 10 hours ago
One-way/Economy
Sep 2026
from$22*
Last seen: 3 hours ago
One-way/Economy
Oct 2026
from$22*
Last seen: 4 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $22
cmp-daily-histogram-bars-legend-max-price-aria-label $179
Displaying fares for August-2026
  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    09

    Sun

    AUG

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

    Mon

  • ATL–STL, Aug 11, 2026: from $179
    11

    Tue

  • ATL–STL, Aug 12, 2026: from $179
    12

    Wed

  • ATL–STL, Aug 13, 2026: from $179
    13

    Thu

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

    Fri

  • ATL–STL, Aug 15, 2026: from $54
    15

    Sat

  • ATL–STL, Aug 16, 2026: from $115
    16

    Sun

  • ATL–STL, Aug 17, 2026: from $169
    17

    Mon

  • ATL–STL, Aug 18, 2026: from $155
    18

    Tue

  • ATL–STL, Aug 19, 2026: from $149
    19

    Wed

  • ATL–STL, Aug 20, 2026: from $169
    20

    Thu

  • ATL–STL, Aug 21, 2026: from $169
    21

    Fri

  • ATL–STL, Aug 22, 2026: from $125
    22

    Sat

  • ATL–STL, Aug 23, 2026: from $123
    23

    Sun

  • ATL–STL, Aug 24, 2026: from $123
    24

    Mon

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

    Tue

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

    Wed

  • ATL–STL, Aug 27, 2026: from $123
    27

    Thu

  • ATL–STL, Aug 28, 2026: from $43
    28

    Fri

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

    Sat

  • ATL–STL, Aug 30, 2026: from $37
    30

    Sun

  • ATL–STL, Aug 31, 2026: from $37
    31

    Mon

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

    Tue

    SEP

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

    Wed

  • ATL–STL, Sep 3, 2026: from $37
    03

    Thu

  • ATL–STL, Sep 4, 2026: from $37
    04

    Fri

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • ATL–STL, Sep 6, 2026: from $27
    06

    Sun

  • ATL–STL, Sep 7, 2026: from $22
    07

    Mon

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

    • Range$22-$179

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Atlanta, GA to St. Louis, MO on Frontier

    $
    Flights Deals from Atlanta, GA to St. Louis, MO on Frontier
    From
    To
    Atlanta, GA (ATL)St. Louis, MO (STL)One-way
    /
    Discount Den Basic Fare    		Departing Nov 9, 2026

    From

    $22

    Last seen: 13 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Atlanta, GA St. Louis, MO

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