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Harlingen

$214+ 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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
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 29, 2025.

This American Airlines deal was found by Cheapflights users on 11/27. 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 12/126:00 amDEN - HRL
1 stop4h 40mAmerican Airlines
Tue 12/1612:13 pmHRL - DEN
1 stop4h 36mAmerican Airlines
Deal found 11/27$309
This American Airlines deal was found by Cheapflights users on 11/27. 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 12/204:54 pmDEN - HRL
1 stop4h 54mAmerican Airlines
Mon 12/228:11 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Deal found 11/27$370
This United Airlines deal was found by Cheapflights users on 11/27. 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 12/195:00 amDEN - HRL
1 stop5h 13mUnited Airlines
Sun 12/215:20 pmHRL - DEN
1 stop7h 24mUnited Airlines
Deal found 11/27$373
This American Airlines deal was found by Cheapflights users on 11/28. 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 12/196:21 amDEN - HRL
1 stop6h 57mAmerican Airlines
Sun 12/218:11 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Deal found 11/28$394
This Southwest deal was found by Cheapflights users on 11/27. 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 12/203:40 pmDEN - HRL
2 stops7h 15mSouthwest
Mon 12/228:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 11/27$455
This Southwest deal was found by Cheapflights users on 11/27. 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 12/1911:55 amDEN - HRL
2 stops6h 40mSouthwest
Sun 12/218:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 11/27$456
This Kiwi.com deal was found by Cheapflights users on 11/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:13 pmDEN - HRL
1 stop14h 40mMultiple Airlines
Fri 12/2612:37 pmHRL - DEN
1 stop11h 32mMultiple Airlines
Deal found 11/27$497
This American Airlines deal was found by Cheapflights users on 11/28. 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 12/196:21 amDEN - HRL
1 stop6h 57mAmerican Airlines
Fri 1/28:11 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Deal found 11/28$508
This Southwest deal was found by Cheapflights users on 11/28. 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.
Sun 12/215:30 amDEN - HRL
1 stop4h 50mSouthwest
Sun 12/288:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 11/28$518
This Southwest deal was found by Cheapflights users on 11/28. 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 12/1911:55 amDEN - HRL
2 stops6h 40mSouthwest
Fri 1/28:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 11/28$531
This American Airlines deal was found by Cheapflights users on 11/28. 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 12/234:46 pmCOS - HRL
1 stop15h 54mAmerican Airlines
Tue 12/308:11 pmHRL - COS
1 stop14h 54mAmerican Airlines
Deal found 11/28$613
This United Airlines deal was found by Cheapflights users on 11/28. 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 12/235:45 amCOS - HRL
2 stops9h 21mUnited Airlines
Tue 12/305:00 amHRL - COS
1 stop17h 54mUnited Airlines
Deal found 11/28$787

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 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$243
(American Airlines)

One-way from

$214
(United Airlines)

Popular in

April

Cheapest in

October

Average price

$354
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
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 ($6 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 29, 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 1/15

7:50 am-2:46 pm

1 stop5h 56m

Harlingen Valley Intl

Mon 1/19

6:44 pm-10:34 pm

1 stop4h 50m

$243

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 1/31

6:12 am-2:52 pm

1 stop7h 40m

Harlingen Valley Intl

Tue 2/3

6:02 am-9:51 am

1 stop4h 49m

$277

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 2/18

8:09 am-2:12 pm

1 stop5h 03m

Harlingen Valley Intl

Sun 2/22

10:35 am-4:00 pm

1 stop6h 25m

$278

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 1/31

1:25 pm-9:59 pm

2 stops7h 34m

Harlingen Valley Intl

Tue 2/3

5:25 pm-9:58 pm

1 stop5h 33m

$292

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/31

7:50 am-2:52 pm

1 stop6h 02m

Harlingen Valley Intl

Tue 2/3

3:22 pm-8:53 pm

1 stop6h 31m

$295

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/12

6:00 am-11:40 am

1 stop4h 40m

Harlingen Valley Intl

Tue 12/16

12:13 pm-3:49 pm

1 stop4h 36m

$309

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-9:30 am

1 stop4h 30m

$328

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 12/20

4:54 pm-10:48 pm

1 stop4h 54m

Harlingen Valley Intl

Mon 12/22

8:11 pm-11:56 pm

1 stop4h 45m

$370

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/19

5:00 am-11:13 am

1 stop5h 13m

Harlingen Valley Intl

Sun 12/21

5:20 pm-11:44 pm

1 stop7h 24m

$373

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/31

9:41 am-9:59 pm

2 stops11h 18m

Harlingen Valley Intl

Tue 2/3

9:20 am-2:24 pm

1 stop6h 04m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/28

Showing 1-10 of 15 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 American Airlines and United Airlines fly from Colorado to Harlingen, Texas in about 5h 56m. The time it takes to get you to your destination can typically vary by up to 1h 38m. 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.

  • 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

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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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$198Average$342FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$343FlexibilityNo cancel feeOn-time71%

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