Southwest® flights from Birmingham to San Antonio from $155

Promo Code

Low fares from Birmingham to San Antonio

$

Birmingham (BHM)to

San Antonio (SAT)
Depart: 10/29/2026

One-way

Basic

From
$155
Seen: 20 hrs ago

Birmingham (BHM)to

San Antonio (SAT)
Depart: 11/10/2026

One-way

Basic

From
$155
Seen: 23 hrs ago

Birmingham (BHM)to

San Antonio (SAT)
Depart: 10/21/2026

One-way

Basic

From
$155
Seen: 12 hrs ago

Birmingham (BHM)to

San Antonio (SAT)
Depart: 10/27/2026

One-way

Basic

From
$155
Seen: 15 hrs ago

Birmingham (BHM)to

San Antonio (SAT)
Depart: 12/02/2026

One-way

Basic

From
$155
Seen: 1 hour ago

Birmingham (BHM)to

San Antonio (SAT)
Depart: 12/08/2026

One-way

Basic

From
$155
Seen: 10 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 Birmingham to San Antonio

Oct 2026
From$155*
Seen: 20 hrs ago
One Way/Basic
Nov 2026
From$155*
Seen: 23 hrs ago
One Way/Basic
Dec 2026
From$155*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $155
cmp-daily-histogram-bars-legend-max-price-aria-label $419
Displaying fares for October-2026
  • BHM–SAT, 10/01/2026: From $419
    01

    Thu

    OCT

  • BHM–SAT, 10/02/2026: From $419
    02

    Fri

  • BHM–SAT: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

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

    Sun

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

    Mon

  • BHM–SAT, 10/06/2026: From $419
    06

    Tue

  • BHM–SAT, 10/07/2026: From $344
    07

    Wed

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

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

  • BHM–SAT, 10/13/2026: From $344
    13

    Tue

  • BHM–SAT, 10/14/2026: From $249
    14

    Wed

  • BHM–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

  • BHM–SAT: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

  • BHM–SAT: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • BHM–SAT: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

  • BHM–SAT, 10/19/2026: From $249
    19

    Mon

  • BHM–SAT, 10/20/2026: From $249
    20

    Tue

  • BHM–SAT, 10/21/2026: From $155
    21

    Wed

  • BHM–SAT, 10/22/2026: From $155
    22

    Thu

  • BHM–SAT, 10/23/2026: From $175
    23

    Fri

  • BHM–SAT: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

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

    Sun

  • BHM–SAT, 10/26/2026: From $155
    26

    Mon

  • BHM–SAT, 10/27/2026: From $155
    27

    Tue

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

    Wed

  • BHM–SAT, 10/29/2026: From $155
    29

    Thu

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

    Fri

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

    Sat

    • Range$155-$419

    *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:
    Birmingham-Shuttlesworth International Airport
    Arriving at:
    San Antonio International Airport
    Distance:
    744 miles

    Route Information

    121† Weekly flights

    † 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

    There are 121 weekly flights from Birmingham to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Birmingham to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Birmingham to San Antonio—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 Birmingham