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Harlingen

$182+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 4, 2025.

This Southwest deal was found by Cheapflights users on 12/2. 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 12/1611:30 amHRL - DEN
1 stop5h 40mSouthwest
Deal found 12/2$280
This American Airlines deal was found by Cheapflights users on 12/1. 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 12/169:11 amDEN - HRL
1 stop7h 28mAmerican Airlines
Sun 12/218:11 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Deal found 12/1$291
This Southwest deal was found by Cheapflights users on 12/1. 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 12/41:05 pmDEN - HRL
1 stop7h 15mSouthwest
Sat 12/62:40 pmHRL - DEN
1 stop5h 50mSouthwest
Deal found 12/1$309
This American Airlines deal was found by Cheapflights users on 12/4. 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 12/610:37 amCOS - HRL
1 stop6h 02mAmerican Airlines
Mon 12/85:36 amHRL - COS
1 stop5h 11mAmerican Airlines
Deal found 12/4$309
This Southwest deal was found by Cheapflights users on 12/2. 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 12/125:30 pmDEN - HRL
1 stop5h 05mSouthwest
Wed 12/1710:30 amHRL - DEN
2 stops6h 50mSouthwest
Deal found 12/2$314
This Southwest deal was found by Cheapflights users on 12/2. 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 12/285:30 amDEN - HRL
1 stop4h 50mSouthwest
Sun 1/48:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 12/2$339
This Southwest deal was found by Cheapflights users on 12/2. 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 12/3011:55 pmDEN - HRL
2 stops9h 55mSouthwest
Tue 1/66:30 amHRL - DEN
1 stop6h 45mSouthwest
Deal found 12/2$340
This Southwest deal was found by Cheapflights users on 12/4. 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 12/65:00 amCOS - HRL
1 stop8h 05mSouthwest
Mon 12/87:30 amHRL - COS
2 stops9h 45mSouthwest
Deal found 12/4$350
This Southwest deal was found by Cheapflights users on 12/2. 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 12/1811:55 amDEN - HRL
1 stop6h 30mSouthwest
Tue 12/238:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 12/2$353
This Delta deal was found by Cheapflights users on 12/3. 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 12/195:45 amDEN - HRL
1 stop7h 35mDelta
Sun 12/213:15 pmHRL - DEN
1 stop8h 38mDelta
Deal found 12/3$374
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/187:36 amCOS - HRL
1 stop7h 30mUnited Airlines
Mon 12/225:20 pmHRL - COS
1 stop5h 34mUnited Airlines
Deal found 12/3$509
This Southwest deal was found by Cheapflights users on 12/3. 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 12/211:10 pmCOS - HRL
2 stops9h 45mSouthwest
Mon 12/295:45 pmHRL - COS
2 stops6h 45mSouthwest
Deal found 12/3$520

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 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$191
(Southwest)

One-way from

$182
(American Airlines)

Popular in

April

Cheapest in

October

Average price

$303
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 December 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 December 4, 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 1/17

4:00 pm-9:30 pm

1 stop4h 30m

Harlingen Valley Intl

Sat 1/24

3:45 pm-10:10 pm

1 stop7h 25m

$191

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/17

7:50 am-2:52 pm

1 stop6h 02m

Harlingen Valley Intl

Sat 1/24

6:02 am-6:06 pm

2 stops13h 04m

$215

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

11:06 am-5:41 pm

1 stop7h 35m

$229

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 1/9

10:55 am-6:00 pm

1 stop6h 05m

Harlingen Valley Intl

Mon 1/12

6:30 am-1:10 pm

2 stops7h 40m

$250

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/24

5:29 pm-11:21 pm

1 stop4h 52m

Harlingen Valley Intl

Tue 1/27

6:44 pm-10:34 pm

1 stop4h 50m

$277

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 1/31

7:30 am-4:06 pm

1 stop7h 36m

Harlingen Valley Intl

Tue 2/3

12:10 pm-9:06 pm

2 stops9h 56m

$292

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 2/15

10:45 am-6:40 pm

2 stops6h 55m

Harlingen Valley Intl

Fri 2/20

8:10 pm-11:55 pm

1 stop4h 45m

$300

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 3/5

12:00 pm-10:05 pm

2 stops9h 05m

Harlingen Valley Intl

Thu 3/12

6:50 am-12:45 pm

1 stop6h 55m

$304

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 2/18

8:09 am-10:52 pm

1 stop13h 43m

Harlingen Valley Intl

Sun 2/22

8:07 pm-1:56 pm

1 stop18h 49m

$305

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/24

5:01 am-11:26 am

1 stop5h 25m

Harlingen Valley Intl

Tue 1/27

5:25 pm-10:06 pm

1 stop5h 41m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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, 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 Southwest, American Airlines, and United Airlines fly from Colorado to Harlingen, Texas in about 4h 30m. The time it takes to get you to your destination can typically vary by up to 3h 06m. 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, 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$198Average$342FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$343FlexibilityNo cancel feeOn-time71%

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