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Harlingen

$129+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This Southwest deal was found by Cheapflights users on 1/26. 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 2/104:35 pm
DEN
-
HRL
1 stop4h 15m
Southwest
Sat 2/145:25 pm
HRL
-
DEN
1 stop6h 45m
Southwest
Deal found 1/26$197
This American Airlines deal was found by Cheapflights users on 1/25. 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 2/248:00 am
DEN
-
HRL
1 stop5h 05m
American Airlines
Sat 2/286:46 pm
HRL
-
DEN
1 stop4h 54m
American Airlines
Deal found 1/25$228
This Southwest deal was found by Cheapflights users on 1/27. 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.
Wed 3/412:45 pm
DEN
-
HRL
1 stop7h 05m
Southwest
Sat 3/75:05 am
HRL
-
DEN
1 stop8h 40m
Southwest
Deal found 1/27$232
This American Airlines deal was found by Cheapflights users on 1/26. 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 2/1410:20 am
DEN
-
HRL
1 stop6h 56m
American Airlines
Fri 2/208:06 pm
HRL
-
DEN
1 stop4h 48m
American Airlines
Deal found 1/26$253
This Southwest deal was found by Cheapflights users on 1/25. 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 2/2412:35 pm
DEN
-
HRL
2 stops7h 15m
Southwest
Sat 2/286:15 am
HRL
-
DEN
1 stop5h 05m
Southwest
Deal found 1/25$256
This Southwest deal was found by Cheapflights users on 1/26. 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 3/113:05 pm
DEN
-
HRL
1 stop5h 20m
Southwest
Tue 3/175:05 pm
HRL
-
DEN
1 stop6h 45m
Southwest
Deal found 1/26$257
This Southwest deal was found by Cheapflights users on 1/26. 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 3/124:50 pm
DEN
-
HRL
1 stop4h 20m
Southwest
Tue 3/175:05 pm
HRL
-
DEN
1 stop6h 45m
Southwest
Deal found 1/26$281
This American Airlines deal was found by Cheapflights users on 1/26. 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 2/103:17 pm
COS
-
HRL
1 stop7h 04m
American Airlines
Sat 2/146:46 pm
HRL
-
COS
1 stop4h 24m
American Airlines
Deal found 1/26$309
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/1010:33 am
COS
-
HRL
2 stops10h 26m
United Airlines
Sat 2/145:22 pm
HRL
-
COS
1 stop5h 22m
United Airlines
Deal found 1/26$314
This United Airlines deal was found by Cheapflights users on 1/25. 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 2/312:09 pm
COS
-
HRL
1 stop6h 52m
United Airlines
Wed 2/45:25 pm
HRL
-
COS
1 stop5h 33m
United Airlines
Deal found 1/25$379

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Southwest)

One-way from

$129
(Southwest)

Popular in

April

Cheapest in

October

Average price

$351
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. 2% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 27, 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

Tue 2/10

4:35 pm-9:50 pm

1 stop4h 15m

Harlingen Valley Intl

Sat 2/14

5:25 pm-11:10 pm

1 stop6h 45m

$197

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 2/14

4:44 pm-11:03 pm

1 stop5h 19m

Harlingen Valley Intl

Fri 2/20

8:06 pm-11:54 pm

1 stop4h 48m

$253

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 2/24

12:35 pm-8:50 pm

2 stops7h 15m

Harlingen Valley Intl

Sat 2/28

6:15 am-10:20 am

1 stop5h 05m

$256

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 3/12

4:50 pm-10:10 pm

1 stop4h 20m

Harlingen Valley Intl

Tue 3/17

5:05 pm-10:50 pm

1 stop6h 45m

$281

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/4

8:45 am-5:05 pm

2 stops7h 20m

Harlingen Valley Intl

Sat 3/7

12:10 pm-5:15 pm

2 stops6h 05m

$292

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/11

12:50 pm-9:25 pm

2 stops7h 35m

Harlingen Valley Intl

Tue 3/17

6:20 pm-10:55 pm

2 stops5h 35m

$308

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Tue 2/10

3:17 pm-11:21 pm

1 stop7h 04m

Harlingen Valley Intl

Sat 2/14

6:46 pm-10:10 pm

1 stop4h 24m

$309

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Tue 2/10

10:33 am-9:59 pm

2 stops10h 26m

Harlingen Valley Intl

Sat 2/14

5:22 pm-9:44 pm

1 stop5h 22m

$314

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 4/23

6:30 am-3:05 pm

1 stop7h 35m

Harlingen Valley Intl

Mon 4/27

4:02 pm-11:15 pm

1 stop8h 13m

$348

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 3/17

3:05 pm-9:25 pm

1 stop5h 20m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

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, 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, American Airlines, and United Airlines fly from Colorado to Harlingen, Texas in about 4h 15m. The time it takes to get you to your destination can typically vary by up to 6h 11m. 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

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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$198Average$309FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$238Average$341FlexibilityNo cancel feeOn-time71%

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