Southwest® flights from Jacksonville to San Antonio from $125

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Low fares from Jacksonville to San Antonio

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Jacksonville (JAX)to

San Antonio (SAT)
Depart: 11/21/2026

One-way

Basic

From
$125
Seen: 23 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 12/08/2026

One-way

Basic

From
$125
Seen: 11 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 01/07/2027

One-way

Basic

From
$125
Seen: 1 hour ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 01/13/2027

One-way

Basic

From
$125
Seen: 23 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 12/05/2026

One-way

Basic

From
$125
Seen: 18 hrs ago

Jacksonville (JAX)to

San Antonio (SAT)
Depart: 11/12/2026

One-way

Basic

From
$125
Seen: 11 hrs ago

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Explore flights from Jacksonville to San Antonio

Oct 2026
From$294*
Seen: 5 hrs ago
One Way/Basic
Nov 2026
From$125*
Seen: 9 hrs ago
One Way/Basic
Dec 2026
From$125*
Seen: 20 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $125
cmp-daily-histogram-bars-legend-max-price-aria-label $377
Displaying fares for October-2026
  • JAX–SAT: cmp-view-offers-disclaimer. Find Offers
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    OCT

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  • JAX–SAT, 10/30/2026: From $377
    30

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  • JAX–SAT, 10/31/2026: From $294
    31

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    01

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    NOV

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    02

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  • JAX–SAT, 11/03/2026: From $286
    03

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    04

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    05

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  • JAX–SAT, 11/06/2026: From $279
    06

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  • JAX–SAT, 11/07/2026: From $279
    07

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    08

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  • JAX–SAT, 11/09/2026: From $125
    09

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    10

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    11

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  • JAX–SAT, 11/12/2026: From $125
    12

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    13

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  • JAX–SAT, 11/14/2026: From $125
    14

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    15

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    16

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    17

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    18

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    19

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  • JAX–SAT, 11/20/2026: From $228
    20

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  • JAX–SAT, 11/21/2026: From $125
    21

    Sat

    • Range$125-$377

    *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

    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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