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: 09/19/2026

One-way

Basic

From
$129
Seen: 9 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 09/01/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 09/26/2026

One-way

Basic

From
$129
Seen: 6 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$129
Seen: 21 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 09/12/2026

One-way

Basic

From
$129
Seen: 4 hrs ago

San Diego (SAN)to

San Antonio (SAT)
Depart: 10/28/2026

One-way

Basic

From
$129
Seen: 4 hrs ago

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Explore flights from San Diego to San Antonio

Aug 2026
From$129*
Seen: 18 hrs ago
One Way/Basic
Sep 2026
From$129*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$129*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $574
Displaying fares for August-2026
  • SAN–SAT, 08/01/2026: From $574
    01

    Sat

    AUG

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

    Sun

  • SAN–SAT, 08/03/2026: From $574
    03

    Mon

  • SAN–SAT, 08/04/2026: From $574
    04

    Tue

  • SAN–SAT, 08/05/2026: From $574
    05

    Wed

  • SAN–SAT, 08/06/2026: From $574
    06

    Thu

  • SAN–SAT, 08/07/2026: From $460
    07

    Fri

  • SAN–SAT, 08/08/2026: From $460
    08

    Sat

  • SAN–SAT, 08/09/2026: From $460
    09

    Sun

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    10

    Mon

  • SAN–SAT, 08/11/2026: From $460
    11

    Tue

  • SAN–SAT, 08/12/2026: From $460
    12

    Wed

  • SAN–SAT, 08/13/2026: From $460
    13

    Thu

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    14

    Fri

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Sat

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    16

    Sun

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    17

    Mon

  • SAN–SAT, 08/18/2026: From $306
    18

    Tue

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    19

    Wed

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    20

    Thu

  • SAN–SAT, 08/21/2026: From $139
    21

    Fri

  • SAN–SAT, 08/22/2026: From $139
    22

    Sat

  • SAN–SAT, 08/23/2026: From $305
    23

    Sun

  • SAN–SAT, 08/24/2026: From $139
    24

    Mon

  • SAN–SAT, 08/25/2026: From $129
    25

    Tue

  • SAN–SAT, 08/26/2026: From $129
    26

    Wed

  • SAN–SAT, 08/27/2026: From $139
    27

    Thu

  • SAN–SAT, 08/28/2026: From $139
    28

    Fri

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

  • SAN–SAT: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

    • Range$129-$574

    *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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