Southwest® flights from San Diego to Austin from $127

Promo Code

Low fares from San Diego to Austin

$

San Diego (SAN)to

Austin (AUS)
Depart: 01/04/2027

One-way

Basic

From
$127
Seen: 22 hrs ago

San Diego (SAN)to

Austin (AUS)
Depart: 12/21/2026

One-way

Basic

From
$127
Seen: 15 hrs ago

San Diego (SAN)to

Austin (AUS)
Depart: 12/18/2026

One-way

Basic

From
$127
Seen: 6 hrs ago

San Diego (SAN)to

Austin (AUS)
Depart: 11/22/2026

One-way

Basic

From
$127
Seen: 6 hrs ago

San Diego (SAN)to

Austin (AUS)
Depart: 12/31/2026

One-way

Basic

From
$137
Seen: 22 hrs ago

San Diego (SAN)to

Austin (AUS)
Depart: 01/01/2027

One-way

Basic

From
$137
Seen: 20 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from San Diego to Austin

Oct 2026
From$209*
Seen: 1 hour ago
One Way/Basic
Nov 2026
From$127*
Seen: 6 hrs ago
One Way/Basic
Dec 2026
From$127*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $137
cmp-daily-histogram-bars-legend-max-price-aria-label $455
Displaying fares for October-2026
  • SAN–AUS: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

    OCT

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

    Mon

  • SAN–AUS, 10/20/2026: From $455
    20

    Tue

  • SAN–AUS, 10/21/2026: From $455
    21

    Wed

  • SAN–AUS, 10/22/2026: From $455
    22

    Thu

  • SAN–AUS, 10/23/2026: From $320
    23

    Fri

  • SAN–AUS, 10/24/2026: From $320
    24

    Sat

  • SAN–AUS, 10/25/2026: From $320
    25

    Sun

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

    Mon

  • SAN–AUS, 10/27/2026: From $320
    27

    Tue

  • SAN–AUS, 10/28/2026: From $320
    28

    Wed

  • SAN–AUS, 10/29/2026: From $320
    29

    Thu

  • SAN–AUS, 10/30/2026: From $209
    30

    Fri

  • SAN–AUS, 10/31/2026: From $209
    31

    Sat

  • SAN–AUS, 11/01/2026: From $209
    01

    Sun

    NOV

  • SAN–AUS, 11/02/2026: From $209
    02

    Mon

  • SAN–AUS: cmp-view-offers-disclaimer. Find Offers
    03

    Tue

  • SAN–AUS, 11/04/2026: From $209
    04

    Wed

  • SAN–AUS, 11/05/2026: From $209
    05

    Thu

  • SAN–AUS, 11/06/2026: From $209
    06

    Fri

  • SAN–AUS, 11/07/2026: From $137
    07

    Sat

  • SAN–AUS, 11/08/2026: From $189
    08

    Sun

  • SAN–AUS, 11/09/2026: From $189
    09

    Mon

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

    Tue

  • SAN–AUS: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

  • SAN–AUS, 11/12/2026: From $137
    12

    Thu

  • SAN–AUS: cmp-view-offers-disclaimer. Find Offers
    13

    Fri

  • SAN–AUS, 11/14/2026: From $137
    14

    Sat

  • SAN–AUS, 11/15/2026: From $153
    15

    Sun

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

    Mon

  • SAN–AUS, 11/17/2026: From $169
    17

    Tue

    • Range$137-$455

    *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:
    Austin-Bergstrom International Airport
    Average flight time:
    2 hours 53 minutes
    Distance:
    1164 miles

    Questions we hear the most

    The average flight time from San Diego to Austin is 2 hours 53 minutes.
    There are 156 weekly flights from San Diego to Austin on Southwest Airlines.
    Yes, Southwest flies nonstop from San Diego to Austin 4 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Diego to Austin 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly San Diego to Austin with Southwest, check out our Low Fare Calendar.
    You can rent a car at Austin-Bergstrom International Airport book yours with your flight.
    Yes! Flights from San Diego to Austin—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.

    Explore Flights from Other Popular Origins

    Popular Flights from San Diego