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

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Low fares from San Antonio to San Diego

$

San Antonio (SAT)to

San Diego (SAN)
Depart: 09/02/2026

One-way

Basic

From
$129
Seen: 22 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 08/26/2026

One-way

Basic

From
$129
Seen: 19 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 09/16/2026

One-way

Basic

From
$129
Seen: 21 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 08/22/2026

One-way

Basic

From
$129
Seen: 18 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 10/06/2026

One-way

Basic

From
$129
Seen: 17 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 10/27/2026

One-way

Basic

From
$129
Seen: 6 hrs ago

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Explore flights from San Antonio to San Diego

Jul 2026
From$574*
Seen: 12 hrs ago
One Way/Basic
Aug 2026
From$129*
Seen: 19 hrs ago
One Way/Basic
Sep 2026
From$129*
Seen: 3 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 July-2026
  • SAT–SAN, 07/31/2026: From $574
    31

    Fri

    JUL

  • SAT–SAN, 08/01/2026: From $574
    01

    Sat

  • SAT–SAN, 08/02/2026: From $574
    02

    Sun

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

    Mon

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

    Tue

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

    Wed

  • SAT–SAN, 08/06/2026: From $460
    06

    Thu

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

    Fri

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

    Sat

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

    Sun

  • SAT–SAN, 08/10/2026: From $460
    10

    Mon

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

    Tue

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

    Wed

  • SAT–SAN, 08/13/2026: From $306
    13

    Thu

  • SAT–SAN, 08/14/2026: From $306
    14

    Fri

  • SAT–SAN, 08/15/2026: From $306
    15

    Sat

  • SAT–SAN, 08/16/2026: From $306
    16

    Sun

  • SAT–SAN, 08/17/2026: From $306
    17

    Mon

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

    Tue

  • SAT–SAN, 08/19/2026: From $306
    19

    Wed

  • SAT–SAN, 08/20/2026: From $306
    20

    Thu

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

    Fri

  • SAT–SAN, 08/22/2026: From $129
    22

    Sat

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

    Sun

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

    Mon

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

    Tue

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

    Wed

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

    Thu

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

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

    Sat

  • SAT–SAN, 08/30/2026: From $209
    30

    Sun

    • 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 Antonio International Airport
    Arriving at:
    San Diego International Airport
    Average flight time:
    2 hours 55 minutes
    Distance:
    1129 miles

    Route Information

    156† 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 Antonio to San Diego is 2 hours 55 minutes.
    There are 156 weekly flights from San Antonio to San Diego on Southwest Airlines.
    Yes, Southwest flies nonstop from San Antonio to San Diego 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Antonio to San Diego once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly San Antonio to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from San Antonio to San Diego—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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