Southwest® flights from Jacksonville to San Antonio from $170

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Low fares from Jacksonville to San Antonio

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Jacksonville (JAX)to

San Antonio (SAT)
Depart: 10/03/2026

One-way

Basic

From
$170
Seen: 23 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 10/08/2026

One-way

Basic

From
$170
Seen: 22 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 11/03/2026

One-way

Basic

From
$181
Seen: 19 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 10/06/2026

One-way

Basic

From
$185
Seen: 23 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 11/04/2026

One-way

Basic

From
$191
Seen: 22 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 10/17/2026

One-way

Basic

From
$191
Seen: 9 hrs ago

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Explore flights from Jacksonville to San Antonio

Sep 2026
From$269*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$170*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$181*
Seen: 19 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $170
cmp-daily-histogram-bars-legend-max-price-aria-label $383
Displaying fares for September-2026
  • JAX–SAT, 09/12/2026: From $284
    12

    Sat

    SEP

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    13

    Sun

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    14

    Mon

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    15

    Tue

  • JAX–SAT, 09/16/2026: From $274
    16

    Wed

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    17

    Thu

  • JAX–SAT, 09/18/2026: From $383
    18

    Fri

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    19

    Sat

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    20

    Sun

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    21

    Mon

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    22

    Tue

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    23

    Wed

  • JAX–SAT, 09/24/2026: From $367
    24

    Thu

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    25

    Fri

  • JAX–SAT, 09/26/2026: From $269
    26

    Sat

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    27

    Sun

  • JAX–SAT, 09/28/2026: From $304
    28

    Mon

  • JAX–SAT, 09/29/2026: From $269
    29

    Tue

  • JAX–SAT, 09/30/2026: From $269
    30

    Wed

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    01

    Thu

    OCT

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    02

    Fri

  • JAX–SAT, 10/03/2026: From $170
    03

    Sat

  • JAX–SAT, 10/04/2026: From $239
    04

    Sun

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    05

    Mon

  • JAX–SAT, 10/06/2026: From $185
    06

    Tue

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    07

    Wed

  • JAX–SAT, 10/08/2026: From $170
    08

    Thu

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    09

    Fri

  • JAX–SAT, 10/10/2026: From $202
    10

    Sat

  • JAX–SAT, 10/11/2026: From $258
    11

    Sun

    • Range$170-$383

    *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:
    Jacksonville International Airport
    Arriving at:
    San Antonio International Airport
    Distance:
    1007 miles

    Route Information

    112† 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 112 weekly flights from Jacksonville to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Jacksonville to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Jacksonville to San Antonio—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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