Southwest® flights from San Antonio to San Diego from $159

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Low fares from San Antonio to San Diego

$

San Antonio (SAT)to

San Diego (SAN)
Depart: 11/14/2026

One-way

Basic

From
$159
Seen: 19 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 10/19/2026

One-way

Basic

From
$159
Seen: 14 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 12/17/2026

One-way

Basic

From
$159
Seen: 14 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 11/12/2026

One-way

Basic

From
$159
Seen: 16 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 10/15/2026

One-way

Basic

From
$159
Seen: 9 hrs ago

San Antonio (SAT)to

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

One-way

Basic

From
$159
Seen: 10 hrs ago

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Explore flights from San Antonio to San Diego

Sep 2026
From$159*
Seen: 9 hrs ago
One Way/Basic
Oct 2026
From$159*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$159*
Seen: 12 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $462
Displaying fares for September-2026
  • SAT–SAN, 09/10/2026: From $462
    10

    Thu

    SEP

  • SAT–SAN, 09/11/2026: From $462
    11

    Fri

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • SAT–SAN, 09/13/2026: From $462
    13

    Sun

  • SAT–SAN, 09/14/2026: From $462
    14

    Mon

  • SAT–SAN, 09/15/2026: From $462
    15

    Tue

  • SAT–SAN, 09/16/2026: From $371
    16

    Wed

  • SAT–SAN, 09/17/2026: From $371
    17

    Thu

  • SAT–SAN, 09/18/2026: From $371
    18

    Fri

  • SAT–SAN, 09/19/2026: From $371
    19

    Sat

  • SAT–SAN, 09/20/2026: From $371
    20

    Sun

  • SAT–SAN, 09/21/2026: From $371
    21

    Mon

  • SAT–SAN, 09/22/2026: From $371
    22

    Tue

  • SAT–SAN, 09/23/2026: From $306
    23

    Wed

  • SAT–SAN, 09/24/2026: From $306
    24

    Thu

  • SAT–SAN, 09/25/2026: From $306
    25

    Fri

  • SAT–SAN, 09/26/2026: From $306
    26

    Sat

  • SAT–SAN, 09/27/2026: From $306
    27

    Sun

  • SAT–SAN, 09/28/2026: From $306
    28

    Mon

  • SAT–SAN, 09/29/2026: From $306
    29

    Tue

  • SAT–SAN, 09/30/2026: From $159
    30

    Wed

  • SAT–SAN, 10/01/2026: From $220
    01

    Thu

    OCT

  • SAT–SAN, 10/02/2026: From $215
    02

    Fri

  • SAT–SAN, 10/03/2026: From $159
    03

    Sat

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • SAT–SAN, 10/05/2026: From $159
    05

    Mon

  • SAT–SAN, 10/06/2026: From $159
    06

    Tue

  • SAT–SAN, 10/07/2026: From $180
    07

    Wed

  • SAT–SAN, 10/08/2026: From $275
    08

    Thu

  • SAT–SAN, 10/09/2026: From $220
    09

    Fri

    • Range$159-$462

    *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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