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: 11/18/2026

One-way

Basic

From
$129
Seen: 11 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 11/17/2026

One-way

Basic

From
$129
Seen: 5 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 09/23/2026

One-way

Basic

From
$129
Seen: 46 minutes ago

San Antonio (SAT)to

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

One-way

Basic

From
$129
Seen: 1 hour ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 09/12/2026

One-way

Basic

From
$129
Seen: 15 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 11/04/2026

One-way

Basic

From
$129
Seen: 9 hrs ago

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Explore flights from San Antonio to San Diego

Aug 2026
From$460*
Seen: 20 hrs ago
One Way/Basic
Sep 2026
From$129*
Seen: 46 minutes ago
One Way/Basic
Oct 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 $574
Displaying fares for August-2026
  • SAT–SAN, 08/20/2026: From $574
    20

    Thu

    AUG

  • SAT–SAN, 08/21/2026: From $574
    21

    Fri

  • SAT–SAN, 08/22/2026: From $574
    22

    Sat

  • SAT–SAN, 08/23/2026: From $574
    23

    Sun

  • SAT–SAN, 08/24/2026: From $574
    24

    Mon

  • SAT–SAN, 08/25/2026: From $574
    25

    Tue

  • SAT–SAN, 08/26/2026: From $574
    26

    Wed

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

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

    Fri

  • SAT–SAN, 08/29/2026: From $460
    29

    Sat

  • SAT–SAN, 08/30/2026: From $460
    30

    Sun

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

    Mon

  • SAT–SAN, 09/01/2026: From $460
    01

    Tue

    SEP

  • SAT–SAN, 09/02/2026: From $460
    02

    Wed

  • SAT–SAN, 09/03/2026: From $306
    03

    Thu

  • SAT–SAN, 09/04/2026: From $306
    04

    Fri

  • SAT–SAN, 09/05/2026: From $306
    05

    Sat

  • SAT–SAN, 09/06/2026: From $306
    06

    Sun

  • SAT–SAN, 09/07/2026: From $306
    07

    Mon

  • SAT–SAN, 09/08/2026: From $306
    08

    Tue

  • SAT–SAN, 09/09/2026: From $306
    09

    Wed

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

    Thu

  • SAT–SAN, 09/11/2026: From $139
    11

    Fri

  • SAT–SAN, 09/12/2026: From $129
    12

    Sat

  • SAT–SAN, 09/13/2026: From $260
    13

    Sun

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

    Mon

  • SAT–SAN, 09/15/2026: From $129
    15

    Tue

  • SAT–SAN, 09/16/2026: From $129
    16

    Wed

  • SAT–SAN, 09/17/2026: From $170
    17

    Thu

  • SAT–SAN, 09/18/2026: From $139
    18

    Fri

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

    Sat

    • 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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