Southwest® flights from Washington D.C. Reagan National to Harlingen/South Padre Island from $170

Promo Code

Low fares from Washington D.C. Reagan National to Harlingen/South Padre Island

$

Washington D.C. Reagan National (DCA)to

Harlingen/South Padre Island (HRL)
Depart: 11/14/2026

One-way

Basic

From
$170
Seen: 16 hrs ago

Washington D.C. Reagan National (DCA)to

Harlingen/South Padre Island (HRL)
Depart: 10/30/2026

One-way

Basic

From
$170
Seen: 8 hrs ago

Washington D.C. Reagan National (DCA)to

Harlingen/South Padre Island (HRL)
Depart: 10/28/2026

One-way

Basic

From
$175
Seen: 1 hour ago

Washington D.C. Reagan National (DCA)to

Harlingen/South Padre Island (HRL)
Depart: 10/30/2026

One-way

Choice

From
$215
Seen: 8 hrs ago

Washington D.C. Reagan National (DCA)to

Harlingen/South Padre Island (HRL)
Depart: 11/14/2026

One-way

Choice

From
$215
Seen: 16 hrs ago

Washington D.C. Reagan National (DCA)to

Harlingen/South Padre Island (HRL)
Depart: 12/16/2026

One-way

Basic

From
$215
Seen: 17 hrs ago

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Explore flights from Washington D.C. Reagan National to Harlingen/South Padre Island

Try alternate month or interact with individual days below in order to find offers.
Sep 2026
No result for this month.
Oct 2026
From$170*
Seen: 8 hrs ago
One Way/Basic
Nov 2026
From$170*
Seen: 16 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $175
Displaying fares for September-2026
  • DCA–HRL: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

    SEP

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    01

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    02

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    03

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    04

    Sun

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    05

    Mon

  • DCA–HRL, 10/06/2026: From $227
    06

    Tue

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    07

    Wed

  • DCA–HRL, 10/08/2026: From $270
    08

    Thu

  • DCA–HRL, 10/09/2026: From $270
    09

    Fri

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    10

    Sat

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    11

    Sun

  • DCA–HRL, 10/12/2026: From $324
    12

    Mon

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    13

    Tue

  • DCA–HRL, 10/14/2026: From $220
    14

    Wed

  • DCA–HRL, 10/15/2026: From $225
    15

    Thu

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    16

    Fri

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    17

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    18

    Sun

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    19

    Mon

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    20

    Tue

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    21

    Wed

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    22

    Thu

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    23

    Fri

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    24

    Sat

  • DCA–HRL, 10/25/2026: From $269
    25

    Sun

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    26

    Mon

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

    Tue

  • DCA–HRL, 10/28/2026: From $175
    28

    Wed

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

    Thu

    • Range$175-$324

    *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:
    Ronald Reagan National Airport
    Arriving at:
    Valley International Airport
    Distance:
    1479 miles

    Route Information

    83† 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 83 weekly flights from Washington, D.C. (Reagan National) to Harlingen/South Padre Island on Southwest Airlines.
    To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) 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 Washington, D.C. (Reagan National) 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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