Southwest® flights from San Diego to San Antonio from $129

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Low fares from San Diego to San Antonio

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San Diego (SAN)to

San Antonio (SAT)
Depart: 12/30/2026

One-way

Basic

From
$129
Seen: 12 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 12/02/2026

One-way

Basic

From
$129
Seen: 21 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$129
Seen: 23 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$129
Seen: 18 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 10/22/2026

One-way

Basic

From
$129
Seen: 5 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 12/10/2026

One-way

Basic

From
$129
Seen: 20 hrs ago

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Explore flights from San Diego to San Antonio

Oct 2026
From$129*
Seen: 12 hrs ago
One Way/Basic
Nov 2026
From$129*
Seen: 18 hrs ago
One Way/Basic
Dec 2026
From$129*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $584
Displaying fares for October-2026
  • SAN–SAT, 10/03/2026: From $584
    03

    Sat

    OCT

  • SAN–SAT, 10/04/2026: From $579
    04

    Sun

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • SAN–SAT, 10/07/2026: From $584
    07

    Wed

  • SAN–SAT, 10/08/2026: From $579
    08

    Thu

  • SAN–SAT, 10/09/2026: From $470
    09

    Fri

  • SAN–SAT, 10/10/2026: From $470
    10

    Sat

  • SAN–SAT, 10/11/2026: From $465
    11

    Sun

  • SAN–SAT, 10/12/2026: From $470
    12

    Mon

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    13

    Tue

  • SAN–SAT, 10/14/2026: From $470
    14

    Wed

  • SAN–SAT, 10/15/2026: From $465
    15

    Thu

  • SAN–SAT, 10/16/2026: From $316
    16

    Fri

  • SAN–SAT, 10/17/2026: From $229
    17

    Sat

  • SAN–SAT, 10/18/2026: From $316
    18

    Sun

  • SAN–SAT, 10/19/2026: From $219
    19

    Mon

  • SAN–SAT, 10/20/2026: From $190
    20

    Tue

  • SAN–SAT, 10/21/2026: From $190
    21

    Wed

  • SAN–SAT, 10/22/2026: From $129
    22

    Thu

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • SAN–SAT, 10/24/2026: From $223
    24

    Sat

  • SAN–SAT, 10/25/2026: From $285
    25

    Sun

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • SAN–SAT, 10/27/2026: From $190
    27

    Tue

  • SAN–SAT, 10/28/2026: From $129
    28

    Wed

  • SAN–SAT, 10/29/2026: From $213
    29

    Thu

  • SAN–SAT, 10/30/2026: From $213
    30

    Fri

  • SAN–SAT, 10/31/2026: From $213
    31

    Sat

  • SAN–SAT, 11/01/2026: From $270
    01

    Sun

    NOV

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    02

    Mon

    • Range$129-$584

    *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 Diego International Airport
    Arriving at:
    San Antonio International Airport
    Average flight time:
    2 hours 48 minutes
    Distance:
    1129 miles

    Route Information

    154† Weekly flights
    • 2‡ Nonstop flights per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 2‡ Nonstop flights 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 San Diego to San Antonio is 2 hours 48 minutes.
    There are 154 weekly flights from San Diego to San Antonio on Southwest Airlines.
    Yes, Southwest flies nonstop from San Diego to San Antonio 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Diego to San Antonio once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly San Diego 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 San Diego 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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