Southwest® flights from Austin to San Diego from $119

Promo Code

Low fares from Austin to San Diego

$

Austin (AUS)to

San Diego (SAN)
Depart: 10/03/2026

One-way

Basic

From
$119
Seen: 18 hrs ago

Austin (AUS)to

San Diego (SAN)
Depart: 10/05/2026

One-way

Basic

From
$119
Seen: 10 hrs ago

Austin (AUS)to

San Diego (SAN)
Depart: 11/05/2026

One-way

Basic

From
$119
Seen: 10 hrs ago

Austin (AUS)to

San Diego (SAN)
Depart: 11/10/2026

One-way

Basic

From
$119
Seen: 16 hrs ago

Austin (AUS)to

San Diego (SAN)
Depart: 11/19/2026

One-way

Basic

From
$119
Seen: 10 hrs ago

Austin (AUS)to

San Diego (SAN)
Depart: 09/22/2026

One-way

Basic

From
$119
Seen: 6 hrs ago

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Explore flights from Austin to San Diego

Aug 2026
From$290*
Seen: 20 hrs ago
One Way/Basic
Sep 2026
From$119*
Seen: 15 hrs ago
One Way/Basic
Oct 2026
From$119*
Seen: 18 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $119
cmp-daily-histogram-bars-legend-max-price-aria-label $425
Displaying fares for August-2026
  • AUS–SAN, 08/20/2026: From $425
    20

    Thu

    AUG

  • AUS–SAN, 08/21/2026: From $425
    21

    Fri

  • AUS–SAN, 08/22/2026: From $425
    22

    Sat

  • AUS–SAN, 08/23/2026: From $425
    23

    Sun

  • AUS–SAN, 08/24/2026: From $425
    24

    Mon

  • AUS–SAN, 08/25/2026: From $425
    25

    Tue

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

    Wed

  • AUS–SAN, 08/27/2026: From $290
    27

    Thu

  • AUS–SAN, 08/28/2026: From $290
    28

    Fri

  • AUS–SAN, 08/29/2026: From $290
    29

    Sat

  • AUS–SAN, 08/30/2026: From $290
    30

    Sun

  • AUS–SAN, 08/31/2026: From $290
    31

    Mon

  • AUS–SAN, 09/01/2026: From $290
    01

    Tue

    SEP

  • AUS–SAN, 09/02/2026: From $179
    02

    Wed

  • AUS–SAN, 09/03/2026: From $227
    03

    Thu

  • AUS–SAN, 09/04/2026: From $237
    04

    Fri

  • AUS–SAN, 09/05/2026: From $179
    05

    Sat

  • AUS–SAN, 09/06/2026: From $179
    06

    Sun

  • AUS–SAN, 09/07/2026: From $179
    07

    Mon

  • AUS–SAN, 09/08/2026: From $179
    08

    Tue

  • AUS–SAN, 09/09/2026: From $179
    09

    Wed

  • AUS–SAN, 09/10/2026: From $119
    10

    Thu

  • AUS–SAN, 09/11/2026: From $129
    11

    Fri

  • AUS–SAN, 09/12/2026: From $119
    12

    Sat

  • AUS–SAN, 09/13/2026: From $159
    13

    Sun

  • AUS–SAN, 09/14/2026: From $119
    14

    Mon

  • AUS–SAN, 09/15/2026: From $119
    15

    Tue

  • AUS–SAN, 09/16/2026: From $144
    16

    Wed

  • AUS–SAN, 09/17/2026: From $179
    17

    Thu

  • AUS–SAN, 09/18/2026: From $129
    18

    Fri

  • AUS–SAN, 09/19/2026: From $119
    19

    Sat

    • Range$119-$425

    *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:
    Austin-Bergstrom International Airport
    Arriving at:
    San Diego International Airport
    Average flight time:
    3 hours
    Distance:
    1164 miles

    Route Information

    156† Weekly flights
    • 4‡ Nonstop flights per day Monday through Friday
    • 2‡ Nonstop flights on Saturday
    • 3‡ 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 Austin to San Diego is 3 hours.
    There are 156 weekly flights from Austin to San Diego on Southwest Airlines.
    Yes, Southwest flies nonstop from Austin to San Diego 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Austin to San Diego 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly Austin 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 Austin 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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