HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harlingen

$90+ 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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Harlingen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 8, 2025.

This United Airlines deal was found by Cheapflights users on 12/7. 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 12/93:42 pmDEN - HRL
1 stop5h 12mUnited Airlines
Mon 12/157:00 amHRL - DEN
1 stop6h 37mUnited Airlines
Deal found 12/7$247
This Southwest deal was found by Cheapflights users on 12/7. 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 12/91:05 pmDEN - HRL
1 stop7h 00mSouthwest
Mon 12/1510:30 amHRL - DEN
2 stops6h 50mSouthwest
Deal found 12/7$252
This Southwest deal was found by Cheapflights users on 12/6. 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.
Mon 12/81:05 pmDEN - HRL
1 stop7h 00mSouthwest
Wed 12/176:30 pmHRL - DEN
1 stop4h 45mSouthwest
Deal found 12/6$309
This American Airlines deal was found by Cheapflights users on 12/6. 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.
Sun 12/74:34 pmCOS - HRL
1 stop5h 17mAmerican Airlines
Tue 12/912:13 pmHRL - COS
1 stop4h 32mAmerican Airlines
Deal found 12/6$309
This Southwest deal was found by Cheapflights users on 12/5. 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 12/1311:05 amDEN - HRL
1 stop6h 55mSouthwest
Mon 12/1510:30 amHRL - DEN
2 stops6h 50mSouthwest
Deal found 12/5$314
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/164:59 pmCOS - HRL
1 stop5h 12mAmerican Airlines
Tue 1/611:06 amHRL - COS
1 stop7h 35mAmerican Airlines
Deal found 12/7$354
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/1310:24 amCOS - HRL
2 stops10h 30mUnited Airlines
Tue 1/65:25 pmHRL - COS
1 stop5h 33mUnited Airlines
Deal found 12/7$364
This American Airlines deal was found by Cheapflights users on 12/7. 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 12/1310:37 amCOS - HRL
1 stop6h 02mAmerican Airlines
Tue 1/611:06 amHRL - COS
1 stop7h 35mAmerican Airlines
Deal found 12/7$384
This Southwest deal was found by Cheapflights users on 12/6. 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.
Sun 12/77:10 amCOS - HRL
1 stop9h 40mSouthwest
Tue 12/97:30 amHRL - COS
2 stops9h 45mSouthwest
Deal found 12/6$405
This Southwest deal was found by Cheapflights users on 12/7. 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 12/131:05 pmCOS - HRL
2 stops7h 15mSouthwest
Tue 1/66:30 amHRL - COS
2 stops7h 35mSouthwest
Deal found 12/7$412
This Delta deal was found by Cheapflights users on 12/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/185:45 amDEN - HRL
1 stop8h 01mDelta
Mon 12/223:15 pmHRL - DEN
1 stop8h 38mDelta
Deal found 12/6$413
This American Airlines deal was found by Cheapflights users on 12/6. 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.
Fri 12/194:55 pmDEN - HRL
1 stop4h 53mAmerican Airlines
Sun 12/218:11 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Deal found 12/6$434

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 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$247
(United Airlines)

One-way from

$90
(Southwest)

Popular in

April

Cheapest in

October

Average price

$363
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 ($7 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 December 2025
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 December 8, 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 12/13

8:10 am-3:30 pm

1 stop6h 20m

Harlingen Valley Intl

Mon 12/15

6:10 pm-10:22 pm

1 stop5h 12m

$247

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 2/2

4:35 pm-9:50 pm

1 stop4h 15m

Harlingen Valley Intl

Mon 2/9

7:10 pm-10:40 pm

1 stop4h 30m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 1/5

11:55 am-7:30 pm

1 stop6h 35m

Harlingen Valley Intl

Tue 1/13

6:40 pm-10:40 pm

1 stop5h 00m

$283

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 2/13

6:00 am-11:30 am

1 stop4h 30m

Harlingen Valley Intl

Mon 2/16

8:10 pm-11:55 pm

1 stop4h 45m

$283

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 2/15

4:50 pm-10:52 pm

1 stop5h 02m

Harlingen Valley Intl

Fri 2/20

6:46 pm-10:36 pm

1 stop4h 50m

$306

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 12/13

11:05 am-7:00 pm

1 stop6h 55m

Harlingen Valley Intl

Mon 12/15

10:30 am-4:20 pm

2 stops6h 50m

$314

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 1/24

7:45 am-4:06 pm

1 stop7h 21m

Harlingen Valley Intl

Tue 1/27

5:25 pm-11:41 pm

1 stop7h 16m

$327

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Mon 1/5

12:00 pm-10:30 pm

2 stops9h 30m

Harlingen Valley Intl

Mon 1/12

10:50 am-7:20 pm

1 stop9h 30m

$374

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 2/7

1:25 pm-9:59 pm

2 stops7h 34m

Harlingen Valley Intl

Wed 2/11

5:25 pm-9:58 pm

1 stop5h 33m

$437

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Tue 12/23

4:46 pm-10:48 pm

1 stop5h 02m

Harlingen Valley Intl

Fri 12/26

8:11 pm-11:47 pm

1 stop4h 36m

$628

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 20 results
1
2

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 American Airlines, Southwest, 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 3h 19m. 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, 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
O'Hare Intl to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
Seattle to Dallas/Fort Worth flights
LaGuardia to Hobby flights
Newark to Hobby flights
Boston to Dallas/Fort Worth flights
John F Kennedy Intl to Hobby flights
John F Kennedy Intl to Austin flights
Salt Lake City to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Detroit to Dallas/Fort Worth flights
Newark to George Bush Intcntl flights
San Francisco to Dallas/Fort Worth flights
John F Kennedy Intl to George Bush Intcntl flights
LaGuardia to George Bush Intcntl flights
Minneapolis to Dallas/Fort Worth flights
Denver to Dallas/Fort Worth flights
Reagan-National to Hobby flights
Midway to Dallas/Fort Worth flights
Los Angeles to Hobby flights
Seattle to Hobby flights
Baltimore to Hobby flights
Ontario to Dallas/Fort Worth flights
Orlando to Dallas/Fort Worth flights
Santa Ana to Dallas/Fort Worth flights
Philadelphia to Dallas/Fort Worth flights
Atlanta to Dallas/Fort Worth flights
Seattle to George Bush Intcntl flights
Los Angeles to George Bush Intcntl flights
Newark to Austin flights
Dulles Intl to Hobby flights
Minneapolis to Hobby flights
LaGuardia to Love Field flights
O'Hare Intl to Love Field flights
Philadelphia to Hobby flights
Charlotte to Dallas/Fort Worth flights
San Diego to Dallas/Fort Worth flights
Boston to Hobby flights
Ontario to Hobby flights
Dulles Intl to George Bush Intcntl flights
San Francisco to Hobby flights
Denver to Hobby flights
Sky Harbor Intl to Dallas/Fort Worth flights
Los Angeles to Austin flights
Fort Lauderdale to Dallas/Fort Worth flights

Top 3 airlines flying from Colorado to Harlingen

Discover the top 3 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 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$336FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$335FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$367FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.