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: 11/18/2026

One-way

Basic

From
$109
Seen: 10 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 12/03/2026

One-way

Basic

From
$109
Seen: 10 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 11/19/2026

One-way

Basic

From
$109
Seen: 14 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 11/21/2026

One-way

Basic

From
$109
Seen: 10 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 10/31/2026

One-way

Basic

From
$109
Seen: 16 hrs ago

Harlingen/South Padre Island (HRL)to

Denver (DEN)
Depart: 12/04/2026

One-way

Basic

From
$126
Seen: 14 hrs ago

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Explore flights from Harlingen/South Padre Island to Denver

Oct 2026
From$109*
Seen: 16 hrs ago
One Way/Basic
Nov 2026
From$109*
Seen: 14 hrs ago
One Way/Basic
Dec 2026
From$109*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $109
cmp-daily-histogram-bars-legend-max-price-aria-label $315
Displaying fares for October-2026
  • HRL–DEN, 10/03/2026: From $198
    03

    Sat

    OCT

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    04

    Sun

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    05

    Mon

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    06

    Tue

  • HRL–DEN, 10/07/2026: From $198
    07

    Wed

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    08

    Thu

  • HRL–DEN, 10/09/2026: From $315
    09

    Fri

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    10

    Sat

  • HRL–DEN, 10/11/2026: From $242
    11

    Sun

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    12

    Mon

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    13

    Tue

  • HRL–DEN, 10/14/2026: From $198
    14

    Wed

  • HRL–DEN, 10/15/2026: From $242
    15

    Thu

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    16

    Fri

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    17

    Sat

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    18

    Sun

  • HRL–DEN, 10/19/2026: From $200
    19

    Mon

  • HRL–DEN, 10/20/2026: From $198
    20

    Tue

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    21

    Wed

  • HRL–DEN, 10/22/2026: From $154
    22

    Thu

  • HRL–DEN, 10/23/2026: From $165
    23

    Fri

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    24

    Sat

  • HRL–DEN, 10/25/2026: From $219
    25

    Sun

  • HRL–DEN, 10/26/2026: From $165
    26

    Mon

  • HRL–DEN, 10/27/2026: From $165
    27

    Tue

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    28

    Wed

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    29

    Thu

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    30

    Fri

  • HRL–DEN, 10/31/2026: From $109
    31

    Sat

  • HRL–DEN, 11/01/2026: From $165
    01

    Sun

    NOV

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    02

    Mon

    • Range$109-$315

    *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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