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Find low faresSouthwest® flights from Washington, D.C. (Reagan National) to Harlingen/South Padre Island from $205
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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: 03/30/2026
One-way
Basic
From
$205
Seen: 14 hrs ago
Washington, D.C. (Reagan National) (DCA)to
Harlingen/South Padre Island (HRL)
Depart: 02/10/2026
One-way
Basic
From
$205
Seen: 23 hrs ago
Washington, D.C. (Reagan National) (DCA)to
Harlingen/South Padre Island (HRL)
Depart: 03/12/2026
One-way
Basic
From
$220
Seen: 21 hrs ago
Washington, D.C. (Reagan National) (DCA)to
Harlingen/South Padre Island (HRL)
Depart: 03/05/2026
One-way
Basic
From
$235
Seen: 17 hrs ago
Washington, D.C. (Reagan National) (DCA)to
Harlingen/South Padre Island (HRL)
Depart: 02/08/2026
One-way
Basic
From
$240
Seen: 23 hrs ago
Washington, D.C. (Reagan National) (DCA)to
Harlingen/South Padre Island (HRL)
Depart: 03/30/2026
One-way
Choice
From
$245
Seen: 14 hrs ago
Explore flights from Washington, D.C. (Reagan National) to Harlingen/South Padre Island
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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.