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)

Sep 2026
from$214*
Last seen: 5 hours ago
One-way/Economy
Oct 2026
from$19*
Last seen: 7 hours ago
One-way/Economy
Nov 2026
from$23*
Last seen: 5 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $19
cmp-daily-histogram-bars-legend-max-price-aria-label $216
Displaying fares for September-2026
  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

    SEP

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    24

    Thu

  • ATL–STL, Sep 25, 2026: from $214
    25

    Fri

  • ATL–STL, Sep 26, 2026: from $214
    26

    Sat

  • ATL–STL, Sep 27, 2026: from $214
    27

    Sun

  • ATL–STL, Sep 28, 2026: from $214
    28

    Mon

  • ATL–STL, Sep 29, 2026: from $214
    29

    Tue

  • ATL–STL, Sep 30, 2026: from $216
    30

    Wed

  • ATL–STL, Oct 1, 2026: from $214
    01

    Thu

    OCT

  • ATL–STL, Oct 2, 2026: from $214
    02

    Fri

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • ATL–STL, Oct 4, 2026: from $214
    04

    Sun

  • ATL–STL, Oct 5, 2026: from $113
    05

    Mon

  • ATL–STL, Oct 6, 2026: from $171
    06

    Tue

  • ATL–STL, Oct 7, 2026: from $53
    07

    Wed

  • ATL–STL, Oct 8, 2026: from $171
    08

    Thu

  • ATL–STL, Oct 9, 2026: from $133
    09

    Fri

  • ATL–STL, Oct 10, 2026: from $209
    10

    Sat

  • ATL–STL, Oct 11, 2026: from $171
    11

    Sun

  • ATL–STL, Oct 12, 2026: from $103
    12

    Mon

  • ATL–STL, Oct 13, 2026: from $93
    13

    Tue

  • ATL–STL, Oct 14, 2026: from $19
    14

    Wed

  • ATL–STL, Oct 15, 2026: from $49
    15

    Thu

  • ATL–STL, Oct 16, 2026: from $40
    16

    Fri

  • ATL–STL, Oct 17, 2026: from $49
    17

    Sat

  • ATL–STL, Oct 18, 2026: from $160
    18

    Sun

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    19

    Mon

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

  • ATL–STL: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

  • ATL–STL, Oct 22, 2026: from $55
    22

    Thu

    • Range$19-$216

    *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 Jan 4, 2027

    From

    $133

    Last seen: 5 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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