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Harlingen

$109+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/11. 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.
Sat 12/65:02 amDEN - HRL
1 stop5h 02mUnited Airlines
Mon 12/85:00 pmHRL - DEN
1 stop6h 04mUnited Airlines
Deal found 11/11$233
This Southwest deal was found by Cheapflights users on 11/11. 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.
Sat 12/611:05 amDEN - HRL
1 stop6h 55mSouthwest
Mon 12/810:30 amHRL - DEN
2 stops6h 50mSouthwest
Deal found 11/11$238
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/69:11 amDEN - HRL
1 stop7h 28mAmerican Airlines
Mon 12/812:13 pmHRL - DEN
1 stop6h 33mAmerican Airlines
Deal found 11/12$246
This Southwest deal was found by Cheapflights users on 11/10. 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 12/51:05 pmDEN - HRL
1 stop7h 00mSouthwest
Mon 12/810:30 amHRL - DEN
2 stops6h 50mSouthwest
Deal found 11/10$251
This Southwest deal was found by Cheapflights users on 11/10. 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 12/512:10 pmDEN - HRL
1 stop4h 50mSouthwest
Sun 12/76:25 pmHRL - DEN
1 stop5h 45mSouthwest
Deal found 11/10$259
This Southwest deal was found by Cheapflights users on 11/11. 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.
Sat 12/67:55 amDEN - HRL
1 stop5h 10mSouthwest
Sun 12/75:45 amHRL - DEN
2 stops7h 30mSouthwest
Deal found 11/11$276
This Booking.com deal was found by Cheapflights users on 11/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/196:50 pmDEN - HRL
1 stop13h 32mSun Country Air
Sun 12/2111:37 amHRL - DEN
1 stop7h 37mSun Country Air
Deal found 11/10$345
This Delta deal was found by Cheapflights users on 11/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:45 amDEN - HRL
1 stop7h 58mDelta
Wed 11/263:39 pmHRL - DEN
1 stop8h 35mDelta
Deal found 11/12$368
This American Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 11/214:37 pmCOS - HRL
1 stop5h 20mAmerican Airlines
Fri 11/284:08 pmHRL - COS
1 stop5h 19mAmerican Airlines
Deal found 11/13$523
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/206:00 amCOS - HRL
1 stop26h 40mAmerican Airlines
Sat 12/278:11 pmHRL - COS
1 stop28h 36mAmerican Airlines
Deal found 11/12$764
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Fri 11/287:30 amCOS - HRL
1 stop11h 09mUnited Airlines
Tue 12/25:00 pmHRL - COS
1 stop19h 24mUnited Airlines
Deal found 11/12$790
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Fri 11/217:30 amCOS - HRL
1 stop7h 29mUnited Airlines
Fri 11/2812:10 pmHRL - COS
2 stops12h 49mUnited Airlines
Deal found 11/12$901

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(Delta)

One-way from

$109
(American Airlines)

Popular in

April

Cheapest in

October

Average price

$354
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
Search Deals
One-way flight from Colorado to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
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 November 2025
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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 November 13, 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

Sat 12/6

5:02 am-11:04 am

1 stop5h 02m

Harlingen Valley Intl

Mon 12/8

5:00 pm-10:04 pm

1 stop6h 04m

$233

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 12/6

11:05 am-7:00 pm

1 stop6h 55m

Harlingen Valley Intl

Mon 12/8

10:30 am-4:20 pm

2 stops6h 50m

$238

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 1/15

7:50 am-2:46 pm

1 stop5h 56m

Harlingen Valley Intl

Mon 1/19

6:02 am-9:55 am

1 stop4h 53m

$246

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 2/2

12:45 pm-8:50 pm

1 stop7h 05m

Harlingen Valley Intl

Sun 2/8

6:30 am-10:40 am

1 stop5h 10m

$246

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 12/6

12:18 pm-5:39 pm

1 stop4h 21m

Harlingen Valley Intl

Sun 12/7

6:10 pm-11:57 pm

1 stop6h 47m

$246

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

1:05 pm-9:05 pm

1 stop7h 00m

Harlingen Valley Intl

Mon 12/8

11:30 am-4:10 pm

1 stop5h 40m

$246

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

10:21 am-5:39 pm

1 stop6h 18m

Harlingen Valley Intl

Mon 12/8

12:13 pm-5:46 pm

1 stop6h 33m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

12:10 pm-6:00 pm

1 stop4h 50m

Harlingen Valley Intl

Sun 12/7

6:25 pm-11:10 pm

1 stop5h 45m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

8:10 am-3:30 pm

1 stop6h 20m

Harlingen Valley Intl

Sun 12/7

6:10 pm-9:57 pm

1 stop4h 47m

$259

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Tue 3/17

5:08 pm-12:04 am

1 stop5h 56m

Harlingen Valley Intl

Wed 3/18

7:55 pm-11:25 pm

1 stop4h 30m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 24 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, October is the cheapest month in which you can book a flight from Colorado to Harlingen, Texas (average of $196). 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 United Airlines, Southwest, and American Airlines fly from Colorado to Harlingen, Texas in about 5h 02m. The time it takes to get you to your destination can typically vary by up to 1h 53m. 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 $109 on American Airlines. Other airlines that offer cheap prices include Delta from $117 and Southwest from $155 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, October is the cheapest month in which you can book a flight from Colorado to Harlingen, Texas (average of $196). 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

Browse thousands of different options on Cheapflights for your next trip

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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 2 airlines flying from Colorado to Harlingen

Discover the top 2 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$199Average$350FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$323FlexibilityNo cancel feeOn-time71%

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