Southwest® flights from San Antonio to Louisville from $149

Promo Code

Low fares from San Antonio to Louisville

$

San Antonio (SAT)to

Louisville (SDF)
Depart: 09/22/2026

One-way

Basic

From
$149
Seen: 14 hrs ago

San Antonio (SAT)to

Louisville (SDF)
Depart: 11/19/2026

One-way

Basic

From
$149
Seen: 14 hrs ago

San Antonio (SAT)to

Louisville (SDF)
Depart: 11/21/2026

One-way

Basic

From
$149
Seen: 11 hrs ago

San Antonio (SAT)to

Louisville (SDF)
Depart: 10/01/2026

One-way

Basic

From
$149
Seen: 11 hrs ago

San Antonio (SAT)to

Louisville (SDF)
Depart: 11/26/2026

One-way

Basic

From
$149
Seen: 9 hrs ago

San Antonio (SAT)to

Louisville (SDF)
Depart: 10/06/2026

One-way

Basic

From
$149
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 Louisville

Aug 2026
From$295*
Seen: 9 hrs ago
One Way/Basic
Sep 2026
From$149*
Seen: 14 hrs ago
One Way/Basic
Oct 2026
From$149*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $149
cmp-daily-histogram-bars-legend-max-price-aria-label $341
Displaying fares for August-2026
  • SAT–SDF, 08/23/2026: From $341
    23

    Sun

    AUG

  • SAT–SDF, 08/24/2026: From $341
    24

    Mon

  • SAT–SDF, 08/25/2026: From $295
    25

    Tue

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

    Wed

  • SAT–SDF, 08/27/2026: From $341
    27

    Thu

  • SAT–SDF, 08/28/2026: From $341
    28

    Fri

  • SAT–SDF, 08/29/2026: From $295
    29

    Sat

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

    Sun

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

    Mon

  • SAT–SDF: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

  • SAT–SDF, 09/02/2026: From $295
    02

    Wed

  • SAT–SDF, 09/03/2026: From $341
    03

    Thu

  • SAT–SDF, 09/04/2026: From $341
    04

    Fri

  • SAT–SDF, 09/05/2026: From $196
    05

    Sat

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

    Sun

  • SAT–SDF, 09/07/2026: From $249
    07

    Mon

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

    Tue

  • SAT–SDF, 09/09/2026: From $196
    09

    Wed

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

    Thu

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

    Fri

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

    Sat

  • SAT–SDF: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • SAT–SDF: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

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

    Tue

  • SAT–SDF, 09/16/2026: From $235
    16

    Wed

  • SAT–SDF, 09/17/2026: From $154
    17

    Thu

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

    Fri

  • SAT–SDF: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • SAT–SDF, 09/20/2026: From $219
    20

    Sun

  • SAT–SDF: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

  • SAT–SDF, 09/22/2026: From $149
    22

    Tue

    • Range$149-$341

    *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:
    Louisville International Airport
    Distance:
    942 miles

    Route Information

    132† 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 132 weekly flights from San Antonio to Louisville on Southwest Airlines.
    To find the lowest fares by day and time to fly San Antonio to Louisville with Southwest, check out our Low Fare Calendar.
    You can rent a car at Louisville International Airport book yours with your flight.
    Yes! Flights from San Antonio to Louisville—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