Southwest® flights from Ontario/LA to Harlingen/South Padre Island from $250

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Low fares from Ontario/LA to Harlingen/South Padre Island

$

Ontario/LA (ONT)to

Harlingen/South Padre Island (HRL)
Depart: 10/19/2026

One-way

Basic

From
$250
Seen: 23 hrs ago

Ontario/LA (ONT)to

Harlingen/South Padre Island (HRL)
Depart: 11/15/2026

One-way

Basic

From
$269
Seen: 10 hrs ago

Ontario/LA (ONT)to

Harlingen/South Padre Island (HRL)
Depart: 10/16/2026

One-way

Basic

From
$280
Seen: 23 hrs ago

Ontario/LA (ONT)to

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

One-way

Basic

From
$290
Seen: 11 minutes ago

Ontario/LA (ONT)to

Harlingen/South Padre Island (HRL)
Depart: 10/19/2026

One-way

Choice

From
$295
Seen: 23 hrs ago

Ontario/LA (ONT)to

Harlingen/South Padre Island (HRL)
Depart: 11/15/2026

One-way

Choice

From
$314
Seen: 10 hrs ago

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Explore flights from Ontario/LA to Harlingen/South Padre Island

Oct 2026
From$250*
Seen: 23 hrs ago
One Way/Basic
Nov 2026
From$269*
Seen: 10 hrs ago
One Way/Basic
Dec 2026
No result for this month.
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Displaying fares for October-2026
  • ONT–HRL: cmp-view-offers-disclaimer. Find Offers
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    OCT

  • ONT–HRL, 10/15/2026: From $290
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    NOV

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    • Range$250-$290

    *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:
    LA/Ontario International Airport
    Arriving at:
    Valley International Airport
    Distance:
    1307 miles

    Questions we hear the most

    There are 49 weekly flights from Ontario/LA to Harlingen/South Padre Island on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA 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 Ontario/LA 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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