Southwest® flights from San Antonio to Harlingen/South Padre Island from $112

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Low fares from San Antonio to Harlingen/South Padre Island

$

San Antonio (SAT)to

Harlingen/South Padre Island (HRL)
Depart: 10/15/2026

One-way

Basic

From
$112
Seen: 21 hrs ago

San Antonio (SAT)to

Harlingen/South Padre Island (HRL)
Depart: 10/23/2026

One-way

Basic

From
$122
Seen: 16 hrs ago

San Antonio (SAT)to

Harlingen/South Padre Island (HRL)
Depart: 11/17/2026

One-way

Basic

From
$129
Seen: 2 hrs ago

San Antonio (SAT)to

Harlingen/South Padre Island (HRL)
Depart: 10/03/2026

One-way

Basic

From
$129
Seen: 6 hrs ago

San Antonio (SAT)to

Harlingen/South Padre Island (HRL)
Depart: 10/22/2026

One-way

Basic

From
$132
Seen: 10 hrs ago

San Antonio (SAT)to

Harlingen/South Padre Island (HRL)
Depart: 10/08/2026

One-way

Basic

From
$132
Seen: 2 hrs ago

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Explore flights from San Antonio to Harlingen/South Padre Island

Sep 2026
From$179*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$112*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$129*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $129
cmp-daily-histogram-bars-legend-max-price-aria-label $240
Displaying fares for September-2026
  • SAT–HRL, 09/12/2026: From $221
    12

    Sat

    SEP

  • SAT–HRL, 09/13/2026: From $240
    13

    Sun

  • SAT–HRL, 09/14/2026: From $190
    14

    Mon

  • SAT–HRL, 09/15/2026: From $189
    15

    Tue

  • SAT–HRL, 09/16/2026: From $179
    16

    Wed

  • SAT–HRL, 09/17/2026: From $221
    17

    Thu

  • SAT–HRL, 09/18/2026: From $221
    18

    Fri

  • SAT–HRL, 09/19/2026: From $180
    19

    Sat

  • SAT–HRL, 09/20/2026: From $211
    20

    Sun

  • SAT–HRL, 09/21/2026: From $180
    21

    Mon

  • SAT–HRL, 09/22/2026: From $180
    22

    Tue

  • SAT–HRL: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

  • SAT–HRL, 09/24/2026: From $180
    24

    Thu

  • SAT–HRL, 09/25/2026: From $214
    25

    Fri

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

    Sat

  • SAT–HRL: cmp-view-offers-disclaimer. Find Offers
    27

    Sun

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

    Mon

  • SAT–HRL: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

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

    Wed

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

    Thu

    OCT

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

    Fri

  • SAT–HRL, 10/03/2026: From $129
    03

    Sat

  • SAT–HRL, 10/04/2026: From $214
    04

    Sun

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

    Mon

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

    Tue

  • SAT–HRL, 10/07/2026: From $167
    07

    Wed

  • SAT–HRL, 10/08/2026: From $132
    08

    Thu

  • SAT–HRL, 10/09/2026: From $180
    09

    Fri

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

    Sat

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

    Sun

    • Range$129-$240

    *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:
    Valley International Airport
    Distance:
    233 miles

    Route Information

    85† 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 85 weekly flights from San Antonio to Harlingen/South Padre Island on Southwest Airlines.
    To find the lowest fares by day and time to fly San Antonio 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 San Antonio 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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