Southwest® flights from Charleston to St. Louis from $109

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Low fares from Charleston to St. Louis

$

Charleston (CHS)to

St. Louis (STL)
Depart: 09/11/2026

One-way

Basic

From
$109
Seen: 4 hrs ago

Charleston (CHS)to

St. Louis (STL)
Depart: 09/14/2026

One-way

Basic

From
$128
Seen: 10 hrs ago

Charleston (CHS)to

St. Louis (STL)
Depart: 08/24/2026

One-way

Basic

From
$128
Seen: 13 hrs ago

Charleston (CHS)to

St. Louis (STL)
Depart: 08/22/2026

One-way

Basic

From
$128
Seen: 7 hrs ago

Charleston (CHS)to

St. Louis (STL)
Depart: 09/17/2026

One-way

Basic

From
$128
Seen: 1 hour ago

Charleston (CHS)to

St. Louis (STL)
Depart: 08/29/2026

One-way

Basic

From
$128
Seen: 10 hrs ago

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Explore flights from Charleston to St. Louis

Aug 2026
From$128*
Seen: 13 hrs ago
One Way/Basic
Sep 2026
From$109*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$128*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $128
cmp-daily-histogram-bars-legend-max-price-aria-label $450
Displaying fares for August-2026
  • CHS–STL, 08/01/2026: From $450
    01

    Sat

    AUG

  • CHS–STL, 08/02/2026: From $450
    02

    Sun

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

    Mon

  • CHS–STL, 08/04/2026: From $450
    04

    Tue

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

    Wed

  • CHS–STL: cmp-view-offers-disclaimer. Find Offers
    06

    Thu

  • CHS–STL, 08/07/2026: From $327
    07

    Fri

  • CHS–STL, 08/08/2026: From $327
    08

    Sat

  • CHS–STL, 08/09/2026: From $327
    09

    Sun

  • CHS–STL, 08/10/2026: From $327
    10

    Mon

  • CHS–STL: cmp-view-offers-disclaimer. Find Offers
    11

    Tue

  • CHS–STL, 08/12/2026: From $327
    12

    Wed

  • CHS–STL: cmp-view-offers-disclaimer. Find Offers
    13

    Thu

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

    Fri

  • CHS–STL, 08/15/2026: From $244
    15

    Sat

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

    Sun

  • CHS–STL, 08/17/2026: From $244
    17

    Mon

  • CHS–STL, 08/18/2026: From $244
    18

    Tue

  • CHS–STL, 08/19/2026: From $244
    19

    Wed

  • CHS–STL, 08/20/2026: From $244
    20

    Thu

  • CHS–STL, 08/21/2026: From $139
    21

    Fri

  • CHS–STL, 08/22/2026: From $128
    22

    Sat

  • CHS–STL, 08/23/2026: From $189
    23

    Sun

  • CHS–STL, 08/24/2026: From $128
    24

    Mon

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

    Tue

  • CHS–STL, 08/26/2026: From $133
    26

    Wed

  • CHS–STL: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

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

    Fri

  • CHS–STL, 08/29/2026: From $128
    29

    Sat

  • CHS–STL, 08/30/2026: From $210
    30

    Sun

  • CHS–STL: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

    • Range$128-$450

    *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:
    Charleston International Airport
    Arriving at:
    Lambert-St Louis Int'l Airport
    Average flight time:
    2 hours 15 minutes
    Distance:
    706 miles

    Route Information

    118† Weekly flights
    • 1‡ Nonstop flight 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 Charleston to St. Louis is 2 hours 15 minutes.
    There are 118 weekly flights from Charleston to St. Louis on Southwest Airlines.
    Yes, Southwest flies nonstop from Charleston to St. Louis once per day on Sundays.
    To find the lowest fares by day and time to fly Charleston 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 Charleston 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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