HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harlingen

$84+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
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

Keep the following information in mind while searching for Colorado to Harlingen flight deals. Data was last updated September 15, 2025.

Round-trip from

$167
(Southwest)

One-way from

$84
(Southwest)

Popular in

January

Cheapest in

February

Average price

$328
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. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 15, 2025.

This Southwest deal was found by Cheapflights users on 9/15. 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 11/119:25 amDEN - HRL
1 stop6h 40mSouthwest
Tue 11/1810:30 amHRL - DEN
1 stop6h 05mSouthwest
Deal found 9/15$167
This Southwest deal was found by Cheapflights users on 9/14. 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 11/41:05 pmDEN - HRL
1 stop7h 00mSouthwest
Mon 11/108:05 pmHRL - DEN
1 stop5h 05mSouthwest
Deal found 9/14$182
This Southwest deal was found by Cheapflights users on 9/15. 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 11/1112:10 pmDEN - HRL
1 stop4h 50mSouthwest
Sun 11/165:45 amHRL - DEN
1 stop6h 55mSouthwest
Deal found 9/15$183
This Southwest deal was found by Cheapflights users on 9/15. 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 10/161:00 pmDEN - HRL
1 stop5h 25mSouthwest
Mon 10/206:00 amHRL - DEN
1 stop7h 15mSouthwest
Deal found 9/15$197
This Southwest deal was found by Cheapflights users on 9/15. 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 11/1311:55 amDEN - HRL
1 stop6h 30mSouthwest
Sun 11/166:25 pmHRL - DEN
1 stop5h 45mSouthwest
Deal found 9/15$198
This American Airlines deal was found by Cheapflights users on 9/15. 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 11/214:37 pmCOS - HRL
1 stop5h 20mAmerican Airlines
Fri 11/285:40 amHRL - COS
1 stop7h 08mAmerican Airlines
Deal found 9/15$389
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 9/221:55 pmCOS - HRL
2 stops6h 57mUnited Airlines
Mon 9/295:17 pmHRL - COS
1 stop5h 24mUnited Airlines
Deal found 9/15$760
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/216:20 pmCOS - HRL
2 stops15h 39mUnited Airlines
Fri 11/2812:10 pmHRL - COS
1 stop10h 28mUnited Airlines
Deal found 9/15$806

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 September 15, 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

Wed 2/18

12:45 pm-8:50 pm

1 stop7h 05m

Harlingen Valley Intl

Tue 2/24

7:35 am-2:10 pm

1 stop7h 35m

$167

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 11/11

10:30 am-6:00 pm

2 stops6h 30m

Harlingen Valley Intl

Tue 11/18

6:30 pm-10:15 pm

1 stop4h 45m

$172

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 11/4

1:05 pm-9:05 pm

1 stop7h 00m

Harlingen Valley Intl

Mon 11/10

8:05 pm-12:10 am

1 stop5h 05m

$182

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 11/11

10:30 am-6:00 pm

2 stops6h 30m

Harlingen Valley Intl

Sun 11/16

5:45 am-11:40 am

1 stop6h 55m

$188

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 11/12

3:05 pm-9:55 pm

2 stops5h 50m

Harlingen Valley Intl

Sun 11/16

6:25 pm-11:45 pm

2 stops6h 20m

$193

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 12/5

9:25 am-5:05 pm

1 stop6h 40m

Harlingen Valley Intl

Mon 12/8

6:40 am-10:35 am

1 stop4h 55m

$198

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 10/16

3:10 pm-11:30 pm

2 stops7h 20m

Harlingen Valley Intl

Mon 10/20

8:10 pm-11:40 pm

1 stop4h 30m

$202

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 1/15

7:00 am-4:55 pm

1 stop8h 55m

Harlingen Valley Intl

Mon 1/19

5:30 pm-10:05 pm

1 stop5h 35m

$202

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Tue 1/6

7:20 am-6:00 pm

1 stop9h 40m

Harlingen Valley Intl

Fri 1/9

6:30 am-1:05 pm

2 stops7h 35m

$265

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Fri 11/21

4:37 pm-10:57 pm

1 stop5h 20m

Harlingen Valley Intl

Fri 11/28

5:40 am-11:48 am

1 stop7h 08m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 15 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, April is the cheapest month in which you can book a flight from Colorado to Harlingen, Texas (average of $267). Flying from Colorado to Harlingen, Texas in June is currently the most expensive (average of $382). 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.

What is the cheapest time of day to fly from CO to HRL?

Find hourly flight availability from Colorado to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Harlingen, Texas as you normally would.

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 and American Airlines fly from Colorado to Harlingen, Texas in about 5h 20m. The time it takes to get you to your destination can typically vary by up to 1h 45m. There are 960 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, April is the cheapest month in which you can book a flight from Colorado to Harlingen, Texas (average of $267). Flying from Colorado to Harlingen, Texas in June is currently the most expensive (average of $382). 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.
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
Seattle to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
O'Hare Intl to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Hobby flights
Newark to Hobby flights
LaGuardia to Hobby flights
Boston to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Baltimore to Dallas/Fort Worth flights
John F Kennedy Intl to George Bush Intcntl flights
San Francisco to Dallas/Fort Worth flights
John F Kennedy Intl to Austin flights
Newark to George Bush Intcntl flights
Los Angeles to Hobby flights
Atlanta to Dallas/Fort Worth flights
Philadelphia to Dallas/Fort Worth flights
Newark to Austin flights
Minneapolis to Dallas/Fort Worth flights
Los Angeles to Austin flights
Midway to Dallas/Fort Worth flights
Detroit to Dallas/Fort Worth flights
LaGuardia to George Bush Intcntl flights
Orlando to Dallas/Fort Worth flights
Denver to Dallas/Fort Worth flights
Reagan-National to Hobby flights
Seattle to Hobby flights
Santa Ana to Dallas/Fort Worth flights
Los Angeles to George Bush Intcntl flights
Dulles Intl to Hobby flights
Sky Harbor Intl to Dallas/Fort Worth flights
LaGuardia to Austin flights
Boston to Austin flights
Boston to Hobby flights
Dulles Intl to Austin flights
Baltimore to Hobby flights
Denver to Hobby flights
Burbank to Dallas/Fort Worth flights
Seattle to Austin flights
Salt Lake City to Dallas/Fort Worth flights
San Francisco to Hobby flights
Ontario to Dallas/Fort Worth flights
Philadelphia to Hobby flights
Seattle to George Bush Intcntl flights
Ontario to Hobby flights
Dulles Intl to George Bush Intcntl flights
O'Hare Intl to Austin 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$348FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$222Average$326FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$356FlexibilityNo 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.