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Harlingen

$169+ Cheap flights from Colorado to Harlingen, TX (HRL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Colorado to Harlingen

Cheapest flights from Colorado to Harlingen
Explore the most affordable flight options available from Colorado to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:25 pmDEN - HRL
1 stop5h 24mUnited Airlines
Tue 12/167:00 amHRL - DEN
1 stop6h 37mUnited Airlines
Deal found 12/10$247
This Southwest deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/111:05 pmDEN - HRL
1 stop7h 00mSouthwest
Tue 12/1610:30 amHRL - DEN
2 stops6h 50mSouthwest
Deal found 12/10$252
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:25 amCOS - HRL
2 stops9h 29mUnited Airlines
Wed 1/75:25 pmHRL - COS
1 stop5h 33mUnited Airlines
Deal found 12/11$268
This Southwest deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1511:55 pmDEN - HRL
2 stops9h 55mSouthwest
Thu 12/188:05 pmHRL - DEN
1 stop5h 05mSouthwest
Deal found 12/10$333
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:25 amCOS - HRL
2 stops9h 29mUnited Airlines
Tue 1/65:25 pmHRL - COS
1 stop5h 33mUnited Airlines
Deal found 12/11$370
This American Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:42 pmDEN - HRL
1 stop5h 29mAmerican Airlines
Thu 12/188:11 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Deal found 12/10$384
This Southwest deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:30 amDEN - HRL
1 stop4h 50mSouthwest
Tue 12/308:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 12/11$409
This American Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:33 amCOS - HRL
1 stop5h 07mAmerican Airlines
Tue 1/611:06 amHRL - COS
1 stop7h 35mAmerican Airlines
Deal found 12/11$409
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:25 amCOS - HRL
2 stops9h 29mUnited Airlines
Mon 1/55:20 pmHRL - COS
1 stop5h 34mUnited Airlines
Deal found 12/11$414
This Southwest deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1611:50 amCOS - HRL
2 stops9h 05mSouthwest
Tue 1/612:15 pmHRL - COS
2 stops8h 05mSouthwest
Deal found 12/11$457
This Southwest deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:30 amDEN - HRL
1 stop4h 50mSouthwest
Fri 12/268:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 12/11$459
This American Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1610:37 amCOS - HRL
1 stop6h 02mAmerican Airlines
Wed 1/76:02 amHRL - COS
1 stop4h 49mAmerican Airlines
Deal found 12/11$525

Find flight deals from Colorado to Harlingen

Keep the following information in mind while searching for Colorado to Harlingen flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$169
(Southwest)

Popular in

April

Cheapest in

October

Average price

$363
Provider with most accurate pricing for Denver Intl-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Harlingen Valley Intl flights.
Search Deals
From Colorado to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Harlingen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Colorado to Harlingen that are best for you.

Fly from

Colorado

Fly to

Harlingen

Route

Depart

Return

Price

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 1/22

12:45 pm-8:50 pm

1 stop7h 05m

Harlingen Valley Intl

Sun 1/25

5:40 am-9:45 am

1 stop5h 05m

$169

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 1/9

5:01 am-11:26 am

1 stop5h 25m

Harlingen Valley Intl

Sun 1/11

5:25 pm-11:41 pm

1 stop7h 16m

$247

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 1/15

3:39 pm-9:59 pm

1 stop5h 20m

Harlingen Valley Intl

Mon 1/19

5:25 pm-11:41 pm

1 stop7h 16m

$297

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/24

9:48 am-4:06 pm

1 stop5h 18m

Harlingen Valley Intl

Tue 1/27

12:10 pm-6:25 pm

1 stop7h 15m

$297

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 2/18

8:09 am-2:12 pm

1 stop5h 03m

Harlingen Valley Intl

Sun 2/22

6:00 am-9:30 am

1 stop4h 30m

$320

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 2/15

4:50 pm-10:52 pm

1 stop5h 02m

Harlingen Valley Intl

Fri 2/20

6:00 am-11:39 am

1 stop6h 39m

$328

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 2/15

10:45 am-6:40 pm

2 stops6h 55m

Harlingen Valley Intl

Fri 2/20

5:45 am-3:20 pm

2 stops10h 35m

$348

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 2/7

1:25 pm-9:59 pm

2 stops7h 34m

Harlingen Valley Intl

Wed 2/11

5:25 pm-9:58 pm

1 stop5h 33m

$437

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Thu 12/25

12:38 pm-7:16 pm

1 stop5h 38m

Harlingen Valley Intl

Mon 12/29

10:12 am-3:54 pm

1 stop6h 42m

$609

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Thu 12/25

10:22 am-7:36 pm

2 stops8h 14m

Harlingen Valley Intl

Mon 12/29

5:20 pm-8:46 am

2 stops16h 26m

$660

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 13 results
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Best time to book a flight from Colorado to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Colorado to Harlingen

What is the cheapest month to book a flight from Colorado to Harlingen, Texas?

Currently, November is the cheapest month in which you can book a flight from Colorado to Harlingen, Texas (average of $190). Flying from Colorado to Harlingen, Texas in June is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Harlingen from Colorado?

    Most people fly into Harlingen Valley Intl (HRL) if they book a flight to Harlingen from Colorado. Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.

  • How long is the flight from Colorado to Harlingen, Texas?

    Airlines like Southwest and United Airlines fly from Colorado to Harlingen, Texas in about 5h 25m. The time it takes to get you to your destination can typically vary by up to 1h 40m. There are 1024 mi between Colorado and Harlingen, Texas. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Colorado to Harlingen, Texas one-way?

    One-way options have recently been found by users for as low as $98 on Southwest. Other airlines that offer cheap prices include American Airlines from $129 and United Airlines from $153 one-way.

  • Can I find deals for flights from Colorado to Harlingen that include hotel bookings?

    Yes. In addition to deals on Colorado to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Harlingen.

  • Can I find deals for business class flights from Colorado to Harlingen?

    Yes. Cheapflights offers flight deals from Colorado to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Harlingen, Texas?

    Currently, November is the cheapest month in which you can book a flight from Colorado to Harlingen, Texas (average of $190). Flying from Colorado to Harlingen, Texas in June is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Colorado to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Colorado to Harlingen

Discover the top 3 airlines that operate flights from Colorado to Harlingen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$336FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$335FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$367FlexibilityNo cancel feeOn-time69%

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