Southwest® flights from Charleston to Harlingen/South Padre Island from $174

Promo Code

Low fares from Charleston to Harlingen/South Padre Island

$

Charleston (CHS)to

Harlingen/South Padre Island (HRL)
Depart: 04/16/2026

One-way

Basic

From
$174
Seen: 12 hrs ago

Charleston (CHS)to

Harlingen/South Padre Island (HRL)
Depart: 04/20/2026

One-way

Basic

From
$209
Seen: 12 hrs ago

Charleston (CHS)to

Harlingen/South Padre Island (HRL)
Depart: 04/16/2026

One-way

Choice

From
$214
Seen: 12 hrs ago

Charleston (CHS)to

Harlingen/South Padre Island (HRL)
Depart: 03/18/2026

One-way

Basic

From
$230
Seen: 3 hrs ago

Charleston (CHS)to

Harlingen/South Padre Island (HRL)
Depart: 02/25/2026

One-way

Basic

From
$245
Seen: 6 hrs ago

Charleston (CHS)to

Harlingen/South Padre Island (HRL)
Depart: 04/20/2026

One-way

Choice

From
$249
Seen: 12 hrs ago

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Explore flights from Charleston to Harlingen/South Padre Island

*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:
Charleston International Airport
Arriving at:
Valley International Airport
Distance:
1154 miles

Route Information

43† 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 43 weekly flights from Charleston to Harlingen/South Padre Island on Southwest Airlines.
To find the lowest fares by day and time to fly Charleston 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 Charleston 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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