Southwest® flights from Louisville to Harlingen/South Padre Island from $151

Promo Code

Low fares from Louisville to Harlingen/South Padre Island

$

Louisville (SDF)to

Harlingen/South Padre Island (HRL)
Depart: 09/11/2026

One-way

Basic

From
$151
Seen: 22 hrs ago

Louisville (SDF)to

Harlingen/South Padre Island (HRL)
Depart: 10/27/2026

One-way

Basic

From
$156
Seen: 45 minutes ago

Louisville (SDF)to

Harlingen/South Padre Island (HRL)
Depart: 11/13/2026

One-way

Basic

From
$165
Seen: 23 hrs ago

Louisville (SDF)to

Harlingen/South Padre Island (HRL)
Depart: 09/15/2026

One-way

Basic

From
$165
Seen: 5 hrs ago

Louisville (SDF)to

Harlingen/South Padre Island (HRL)
Depart: 09/19/2026

One-way

Basic

From
$165
Seen: 3 hrs ago

Louisville (SDF)to

Harlingen/South Padre Island (HRL)
Depart: 09/23/2026

One-way

Basic

From
$170
Seen: 4 hrs ago

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Explore flights from Louisville to Harlingen/South Padre Island

Try alternate month or interact with individual days below in order to find offers.
Aug 2026
No result for this month.
Sep 2026
From$151*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$156*
Seen: 45 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $151
cmp-daily-histogram-bars-legend-max-price-aria-label $282
Displaying fares for August-2026
  • SDF–HRL: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

    AUG

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    24

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    25

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    26

    Wed

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    27

    Thu

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    28

    Fri

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    29

    Sat

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    30

    Sun

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

    Mon

  • SDF–HRL, 09/01/2026: From $201
    01

    Tue

    SEP

  • SDF–HRL: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • SDF–HRL, 09/03/2026: From $235
    03

    Thu

  • SDF–HRL, 09/04/2026: From $282
    04

    Fri

  • SDF–HRL: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • SDF–HRL, 09/06/2026: From $250
    06

    Sun

  • SDF–HRL, 09/07/2026: From $282
    07

    Mon

  • SDF–HRL, 09/08/2026: From $225
    08

    Tue

  • SDF–HRL: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

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

    Thu

  • SDF–HRL, 09/11/2026: From $151
    11

    Fri

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

    Sat

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

    Sun

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

    Mon

  • SDF–HRL, 09/15/2026: From $165
    15

    Tue

  • SDF–HRL, 09/16/2026: From $170
    16

    Wed

  • SDF–HRL, 09/17/2026: From $190
    17

    Thu

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

    Fri

  • SDF–HRL, 09/19/2026: From $165
    19

    Sat

  • SDF–HRL: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

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

    Mon

  • SDF–HRL, 09/22/2026: From $170
    22

    Tue

    • Range$151-$282

    *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:
    Louisville International Airport
    Arriving at:
    Valley International Airport
    Distance:
    1077 miles

    Route Information

    42† 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 42 weekly flights from Louisville to Harlingen/South Padre Island on Southwest Airlines.
    To find the lowest fares by day and time to fly Louisville to Harlingen/South Padre Island with Southwest, check out our Low Fare Calendar.
    You can rent a car at Valley International Airport book yours with your flight.
    Yes! Flights from Louisville to Harlingen/South Padre Island—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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