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Harlingen

$116+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 6, 2025.

This United Airlines deal was found by Cheapflights users on 11/5. 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 12/61:25 pmDEN - HRL
1 stop5h 25mUnited Airlines
Sat 12/139:20 amHRL - DEN
1 stop6h 11mUnited Airlines
Deal found 11/5$251
This Southwest deal was found by Cheapflights users on 11/6. 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 12/811:30 amHRL - DEN
1 stop5h 40mSouthwest
Deal found 11/6$255
This Southwest deal was found by Cheapflights users on 11/5. 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
Sat 12/136:15 amHRL - DEN
2 stops7h 50mSouthwest
Deal found 11/5$256
This Delta deal was found by Cheapflights users on 11/5. 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 12/55:45 amDEN - HRL
1 stop8h 01mDelta
Sun 12/73:41 pmHRL - DEN
1 stop8h 36mDelta
Deal found 11/5$259
This Southwest deal was found by Cheapflights users on 11/5. 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
Sun 12/75:45 amHRL - DEN
2 stops7h 30mSouthwest
Deal found 11/5$288
This American Airlines deal was found by Cheapflights users on 11/6. 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
Tue 12/94:02 pmHRL - DEN
1 stop5h 15mAmerican Airlines
Deal found 11/6$304
This Southwest deal was found by Cheapflights users on 11/6. 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 11/65:30 pmDEN - HRL
1 stop5h 05mSouthwest
Sun 11/98:05 pmHRL - DEN
1 stop5h 05mSouthwest
Deal found 11/6$309
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 11/195:45 amCOS - HRL
1 stop4h 55mAmerican Airlines
Wed 11/268:02 pmHRL - COS
1 stop4h 46mAmerican Airlines
Deal found 11/5$309
This Southwest deal was found by Cheapflights users on 11/5. 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 12/3110:35 amDEN - HRL
1 stop9h 45mSouthwest
Mon 1/58:05 pmHRL - DEN
1 stop5h 05mSouthwest
Deal found 11/5$312
This Southwest deal was found by Cheapflights users on 11/5. 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 11/81:50 pmDEN - HRL
1 stop6h 30mSouthwest
Sat 11/1510:30 amHRL - DEN
2 stops8h 10mSouthwest
Deal found 11/5$314
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/1712:32 pmCOS - HRL
2 stops8h 22mUnited Airlines
Thu 12/255:00 amHRL - COS
1 stop7h 26mUnited Airlines
Deal found 11/6$384
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/174:59 pmCOS - HRL
1 stop5h 12mAmerican Airlines
Wed 12/2410:12 amHRL - COS
1 stop6h 42mAmerican Airlines
Deal found 11/6$423

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 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$197
(American Airlines)

One-way from

$116
(Trip.com)

Popular in

October

Cheapest in

February

Average price

$328
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. 8% potential increase in price ($30 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 6, 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

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Wed 1/28

7:30 am-4:06 pm

1 stop7h 36m

Harlingen Valley Intl

Tue 2/3

12:10 pm-9:06 pm

2 stops9h 56m

$222

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 12/6

7:55 am-2:05 pm

1 stop5h 10m

Harlingen Valley Intl

Sat 12/13

6:15 am-1:05 pm

2 stops7h 50m

$256

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

5:45 am-2:46 pm

1 stop8h 01m

Harlingen Valley Intl

Sun 12/7

3:41 pm-11:17 pm

1 stop8h 36m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 12/4

9:30 am-5:05 pm

1 stop6h 35m

Harlingen Valley Intl

Thu 12/11

10:30 am-4:20 pm

2 stops6h 50m

$288

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 12/31

10:35 am-9:20 pm

1 stop9h 45m

Harlingen Valley Intl

Sun 1/4

8:35 pm-12:15 am

1 stop4h 40m

$288

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

1:05 pm-9:05 pm

1 stop7h 00m

Harlingen Valley Intl

Sun 12/7

5:45 am-12:15 pm

2 stops7h 30m

$288

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 11/9

11:55 am-7:25 pm

1 stop6h 30m

Harlingen Valley Intl

Tue 11/11

7:30 am-12:15 pm

1 stop5h 45m

$309

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 11/10

1:30 pm-7:25 pm

1 stop4h 55m

Harlingen Valley Intl

Mon 11/17

11:30 am-4:10 pm

1 stop5h 40m

$309

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 11/10

7:20 am-3:00 pm

1 stop6h 40m

Harlingen Valley Intl

Wed 11/12

10:30 am-4:20 pm

2 stops6h 50m

$314

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 11/21

5:45 am-2:43 pm

1 stop7h 58m

Harlingen Valley Intl

Wed 11/26

3:39 pm-11:14 pm

1 stop8h 35m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 28 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 Delta fly from Colorado to Harlingen, Texas in about 5h 10m. The time it takes to get you to your destination can typically vary by up to 2h 51m. 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 $148 on Sun Country Air. Other airlines that offer cheap prices include Delta from $154 and Southwest from $209 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

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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 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$199Average$350FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$323FlexibilityNo cancel feeOn-time71%

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