Southwest® flights from San Antonio to San Diego from $140

Promo Code

Low fares from San Antonio to San Diego

$

San Antonio (SAT)to

San Diego (SAN)
Depart: 01/16/2027

One-way

Basic

From
$140
Seen: 16 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 02/06/2027

One-way

Basic

From
$140
Seen: 10 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 01/26/2027

One-way

Basic

From
$150
Seen: 11 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 01/19/2027

One-way

Basic

From
$150
Seen: 11 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 02/10/2027

One-way

Basic

From
$150
Seen: 23 hrs ago

San Antonio (SAT)to

San Diego (SAN)
Depart: 01/05/2027

One-way

Basic

From
$150
Seen: 9 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 Antonio to San Diego

Nov 2026
From$331*
Seen: 18 hrs ago
One Way/Basic
Dec 2026
From$150*
Seen: 21 hrs ago
One Way/Basic
Jan 2027
From$140*
Seen: 16 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $150
cmp-daily-histogram-bars-legend-max-price-aria-label $599
Displaying fares for November-2026
  • SAT–SAN, 11/10/2026: From $599
    10

    Tue

    NOV

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

    Wed

  • SAT–SAN, 11/12/2026: From $599
    12

    Thu

  • SAT–SAN, 11/13/2026: From $599
    13

    Fri

  • SAT–SAN, 11/14/2026: From $599
    14

    Sat

  • SAT–SAN, 11/15/2026: From $599
    15

    Sun

  • SAT–SAN, 11/16/2026: From $485
    16

    Mon

  • SAT–SAN, 11/17/2026: From $485
    17

    Tue

  • SAT–SAN, 11/18/2026: From $485
    18

    Wed

  • SAT–SAN, 11/19/2026: From $485
    19

    Thu

  • SAT–SAN, 11/20/2026: From $485
    20

    Fri

  • SAT–SAN, 11/21/2026: From $485
    21

    Sat

  • SAT–SAN, 11/22/2026: From $485
    22

    Sun

  • SAT–SAN, 11/23/2026: From $331
    23

    Mon

  • SAT–SAN, 11/24/2026: From $331
    24

    Tue

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    25

    Wed

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

    Thu

  • SAT–SAN, 11/27/2026: From $331
    27

    Fri

  • SAT–SAN, 11/28/2026: From $361
    28

    Sat

  • SAT–SAN, 11/29/2026: From $381
    29

    Sun

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    30

    Mon

  • SAT–SAN, 12/01/2026: From $150
    01

    Tue

    DEC

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • SAT–SAN, 12/03/2026: From $155
    03

    Thu

  • SAT–SAN, 12/04/2026: From $175
    04

    Fri

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

    Sat

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • SAT–SAN, 12/07/2026: From $165
    07

    Mon

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • SAT–SAN: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

    • Range$150-$599

    *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

    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.

    Explore Flights from Other Popular Origins

    Popular Flights from San Antonio