Southwest® flights from Harlingen/South Padre Island to Boston from $255

Promo Code

Low fares from Harlingen/South Padre Island to Boston

$

Harlingen/South Padre Island (HRL)to

Boston (BOS)
Depart: 03/19/2026

One-way

Basic

From
$255
Seen: 1 hour ago

Harlingen/South Padre Island (HRL)to

Boston (BOS)
Depart: 03/19/2026

One-way

Choice

From
$295
Seen: 1 hour ago

Harlingen/South Padre Island (HRL)to

Boston (BOS)
Depart: 03/18/2026

One-way

Basic

From
$301
Seen: 57 minutes ago

Harlingen/South Padre Island (HRL)to

Boston (BOS)
Depart: 03/18/2026

One-way

Choice

From
$341
Seen: 57 minutes ago

Harlingen/South Padre Island (HRL)to

Boston (BOS)
Depart: 03/19/2026

One-way

Choice Preferred

From
$375
Seen: 1 hour ago

Harlingen/South Padre Island (HRL)to

Boston (BOS)
Depart: 03/18/2026

One-way

Choice Preferred

From
$421
Seen: 57 minutes ago

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Explore flights from Harlingen/South Padre Island to Boston

Mar 2026
From$255*
Seen: 1 hour ago
One Way/Basic
Apr 2026
No result for this month.
May 2026
No result for this month.
$255
Displaying fares for March-2026
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    • Range$255-$301

    *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:
    Valley International Airport
    Arriving at:
    Logan International Airport
    Distance:
    1874 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 Harlingen/South Padre Island to Boston on Southwest Airlines.
    To find the lowest fares by day and time to fly Harlingen/South Padre Island to Boston with Southwest, check out our Low Fare Calendar.
    You can rent a car at Logan International Airport book yours with your flight.
    Yes! Flights from Harlingen/South Padre Island to Boston—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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