Southwest® flights from Harlingen/South Padre Island to Denver from $109

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Low fares from Harlingen/South Padre Island to Denver

$

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 09/09/2026

One-way

Basic

From
$109
Seen: 8 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 10/21/2026

One-way

Basic

From
$109
Seen: 6 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 09/05/2026

One-way

Basic

From
$109
Seen: 12 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 10/13/2026

One-way

Basic

From
$109
Seen: 2 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 09/15/2026

One-way

Basic

From
$109
Seen: 4 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 09/21/2026

One-way

Basic

From
$109
Seen: 4 hrs ago

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Explore flights from Harlingen/South Padre Island to Denver

Aug 2026
From$188*
Seen: 22 hrs ago
One Way/Basic
Sep 2026
From$109*
Seen: 12 hrs ago
One Way/Basic
Oct 2026
From$109*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $109
cmp-daily-histogram-bars-legend-max-price-aria-label $280
Displaying fares for August-2026
  • HRL–DEN, 08/22/2026: From $188
    22

    Sat

    AUG

  • HRL–DEN: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • HRL–DEN, 08/24/2026: From $232
    24

    Mon

  • HRL–DEN: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

  • HRL–DEN, 08/26/2026: From $188
    26

    Wed

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    27

    Thu

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    28

    Fri

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    29

    Sat

  • HRL–DEN, 08/30/2026: From $232
    30

    Sun

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    31

    Mon

  • HRL–DEN: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

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    02

    Wed

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    03

    Thu

  • HRL–DEN, 09/04/2026: From $225
    04

    Fri

  • HRL–DEN, 09/05/2026: From $109
    05

    Sat

  • HRL–DEN, 09/06/2026: From $147
    06

    Sun

  • HRL–DEN, 09/07/2026: From $280
    07

    Mon

  • HRL–DEN: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • HRL–DEN, 09/09/2026: From $109
    09

    Wed

  • HRL–DEN, 09/10/2026: From $161
    10

    Thu

  • HRL–DEN, 09/11/2026: From $194
    11

    Fri

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    12

    Sat

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    13

    Sun

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    14

    Mon

  • HRL–DEN, 09/15/2026: From $109
    15

    Tue

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    16

    Wed

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    17

    Thu

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    18

    Fri

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    19

    Sat

  • HRL–DEN, 09/20/2026: From $179
    20

    Sun

  • HRL–DEN, 09/21/2026: From $109
    21

    Mon

    • Range$109-$280

    *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:
    Denver International Airport
    Distance:
    1023 miles

    Route Information

    113† 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 113 weekly flights from Harlingen/South Padre Island to Denver on Southwest Airlines.
    To find the lowest fares by day and time to fly Harlingen/South Padre Island to Denver with Southwest, check out our Low Fare Calendar.
    You can rent a car at Denver International Airport book yours with your flight.
    Yes! Flights from Harlingen/South Padre Island to Denver—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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