Southwest® flights from San Antonio to Charleston from $170

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Low fares from San Antonio to Charleston

$

San Antonio (SAT)to

Charleston (CHS)
Depart: 09/05/2026

One-way

Basic

From
$170
Seen: 4 hrs ago

San Antonio (SAT)to

Charleston (CHS)
Depart: 08/20/2026

One-way

Basic

From
$170
Seen: 18 hrs ago

San Antonio (SAT)to

Charleston (CHS)
Depart: 09/12/2026

One-way

Basic

From
$172
Seen: 2 hrs ago

San Antonio (SAT)to

Charleston (CHS)
Depart: 10/19/2026

One-way

Basic

From
$175
Seen: 23 hrs ago

San Antonio (SAT)to

Charleston (CHS)
Depart: 11/07/2026

One-way

Basic

From
$193
Seen: 9 hrs ago

San Antonio (SAT)to

Charleston (CHS)
Depart: 08/31/2026

One-way

Basic

From
$193
Seen: 3 hrs ago

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Explore flights from San Antonio to Charleston

Aug 2026
From$170*
Seen: 18 hrs ago
One Way/Basic
Sep 2026
From$170*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$175*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $170
cmp-daily-histogram-bars-legend-max-price-aria-label $519
Displaying fares for August-2026
  • SAT–CHS, 08/01/2026: From $519
    01

    Sat

    AUG

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    02

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    03

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    04

    Tue

  • SAT–CHS, 08/05/2026: From $519
    05

    Wed

  • SAT–CHS, 08/06/2026: From $519
    06

    Thu

  • SAT–CHS, 08/07/2026: From $444
    07

    Fri

  • SAT–CHS, 08/08/2026: From $444
    08

    Sat

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    09

    Sun

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    10

    Mon

  • SAT–CHS, 08/11/2026: From $444
    11

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    12

    Wed

  • SAT–CHS, 08/13/2026: From $444
    13

    Thu

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    14

    Fri

  • SAT–CHS, 08/15/2026: From $259
    15

    Sat

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    16

    Sun

  • SAT–CHS, 08/17/2026: From $259
    17

    Mon

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    18

    Tue

  • SAT–CHS, 08/19/2026: From $259
    19

    Wed

  • SAT–CHS, 08/20/2026: From $170
    20

    Thu

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    21

    Fri

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    22

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    23

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    24

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    25

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    26

    Wed

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    27

    Thu

  • SAT–CHS, 08/28/2026: From $206
    28

    Fri

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    29

    Sat

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    30

    Sun

  • SAT–CHS, 08/31/2026: From $193
    31

    Mon

    • Range$170-$519

    *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:
    San Antonio International Airport
    Arriving at:
    Charleston International Airport
    Distance:
    1114 miles

    Route Information

    106† Weekly flights

    † 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

    There are 106 weekly flights from San Antonio to Charleston on Southwest Airlines.
    To find the lowest fares by day and time to fly San Antonio to Charleston with Southwest, check out our Low Fare Calendar.
    You can rent a car at Charleston International Airport book yours with your flight.
    Yes! Flights from San Antonio to Charleston—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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