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Harlingen

$175+ Cheap flights from Colorado to Harlingen, TX (HRL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Feb 11 — Feb 181
Wed 2/11
Wed 2/18
1 adult, Economy
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Cheap flight deals from Colorado to Harlingen

Keep the following information in mind while searching for Colorado to Harlingen flight deals. Data was last updated January 12, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Southwest)

One-way from

$175
(American Airlines)

Popular in

April

Cheapest in

October

Average price

$344
Provider with most accurate pricing for Denver Intl-Harlingen Valley Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Harlingen Valley Intl flights.
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From Colorado to Harlingen Valley Intl
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One-way flight from Colorado to Harlingen Valley Intl
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 12, 2026.

This Southwest deal was found by Cheapflights users on 1/10. 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.
Wed 2/1812:45 pmDEN - HRL
1 stop7h 05mSouthwest
Mon 2/235:30 pmHRL - DEN
1 stop5h 35mSouthwest
Deal found 1/10$197
This Southwest deal was found by Cheapflights users on 1/10. 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.
Sat 2/2110:10 amDEN - HRL
2 stops11h 40mSouthwest
Sun 2/228:05 pmHRL - DEN
1 stop4h 50mSouthwest
Deal found 1/10$208
This Southwest deal was found by Cheapflights users on 1/10. 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.
Sat 1/1712:40 pmDEN - HRL
1 stop5h 20mSouthwest
Sat 1/243:45 pmHRL - DEN
1 stop7h 25mSouthwest
Deal found 1/10$222
This American Airlines deal was found by Cheapflights users on 1/11. 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.
Sat 2/142:48 pmDEN - HRL
1 stop7h 15mAmerican Airlines
Fri 2/208:06 pmHRL - DEN
1 stop4h 48mAmerican Airlines
Deal found 1/11$223
This United Airlines deal was found by Cheapflights users on 1/9. 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.
Sat 1/107:45 amDEN - HRL
1 stop7h 21mUnited Airlines
Sat 1/175:25 pmHRL - DEN
1 stop5h 41mUnited Airlines
Deal found 1/9$247
This Southwest deal was found by Cheapflights users on 1/11. 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.
Wed 4/13:05 pmDEN - HRL
1 stop5h 20mSouthwest
Sat 4/45:05 amHRL - DEN
1 stop6h 00mSouthwest
Deal found 1/11$257
This Southwest deal was found by Cheapflights users on 1/11. 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 3/242:35 pmDEN - HRL
2 stops5h 50mSouthwest
Wed 4/16:05 amHRL - DEN
1 stop4h 45mSouthwest
Deal found 1/11$262
This American Airlines deal was found by Cheapflights users on 1/11. 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.
Thu 1/158:26 amDEN - HRL
1 stop5h 20mAmerican Airlines
Mon 1/196:44 pmHRL - DEN
1 stop4h 50mAmerican Airlines
Deal found 1/11$265
This American Airlines deal was found by Cheapflights users on 1/10. 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.
Sat 9/265:03 pmCOS - HRL
1 stop4h 07mAmerican Airlines
Sat 10/36:18 pmHRL - COS
1 stop6h 04mAmerican Airlines
Deal found 1/10$328
This Southwest deal was found by Cheapflights users on 1/10. 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.
Wed 2/1812:05 pmCOS - HRL
2 stops7h 45mSouthwest
Mon 2/2311:15 amHRL - COS
2 stops11h 40mSouthwest
Deal found 1/10$329
This Southwest deal was found by Cheapflights users on 1/10. 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 2/265:00 amCOS - HRL
2 stops5h 30mSouthwest
Sun 3/16:00 pmHRL - COS
2 stops6h 20mSouthwest
Deal found 1/10$359
This Southwest deal was found by Cheapflights users on 1/10. 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.
Fri 6/125:10 amCOS - HRL
1 stop6h 15mSouthwest
Tue 6/162:10 pmHRL - COS
2 stops8h 35mSouthwest
Deal found 1/10$360

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 January 12, 2026.
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

Wed 2/18

12:45 pm-8:50 pm

1 stop7h 05m

Harlingen Valley Intl

Mon 2/23

5:30 pm-10:05 pm

1 stop5h 35m

$197

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 1/27

5:29 pm-11:21 pm

1 stop4h 52m

Harlingen Valley Intl

Sat 1/31

3:22 pm-8:53 pm

1 stop6h 31m

$197

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 2/21

5:50 am-11:40 am

1 stop4h 50m

Harlingen Valley Intl

Sun 2/22

8:05 pm-11:55 pm

1 stop4h 50m

$197

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 2/14

2:48 pm-11:03 pm

1 stop7h 15m

Harlingen Valley Intl

Fri 2/20

8:06 pm-11:54 pm

1 stop4h 48m

$225

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/17

12:40 pm-7:00 pm

1 stop5h 20m

Harlingen Valley Intl

Sat 1/24

6:00 am-11:55 am

2 stops6h 55m

$227

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 3/24

4:05 pm-10:40 pm

1 stop5h 35m

Harlingen Valley Intl

Wed 4/1

6:05 am-9:50 am

1 stop4h 45m

$257

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 4/1

3:05 pm-9:25 pm

1 stop5h 20m

Harlingen Valley Intl

Sat 4/4

5:05 am-10:05 am

1 stop6h 00m

$257

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 3/23

4:00 pm-12:05 am

1 stop7h 05m

Harlingen Valley Intl

Sat 3/28

5:05 am-10:05 am

1 stop6h 00m

$257

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Wed 2/18

4:49 pm-11:03 pm

1 stop5h 14m

Harlingen Valley Intl

Mon 2/23

6:46 pm-10:10 pm

1 stop4h 24m

$329

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Wed 2/18

12:05 pm-8:50 pm

2 stops7h 45m

Harlingen Valley Intl

Mon 2/23

11:15 am-9:55 pm

2 stops11h 40m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/9

Showing 1-10 of 16 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 American Airlines fly from Colorado to Harlingen, Texas in about 4h 52m. The time it takes to get you to your destination can typically vary by up to 2h 13m. 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 $193 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 January 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$198Average$310FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$238Average$341FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$367FlexibilityNo cancel feeOn-time69%

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