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$115+ Cheap flights from Harlingen, TX (HRL) to Colorado

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — DEN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Harlingen to Colorado

Keep the following information in mind while searching for Harlingen to Colorado flight deals. Data was last updated August 18, 2025.

Round-trip from

$223
(American Airlines)

One-way from

$115
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$373
From Harlingen Valley Intl to Colorado
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One-way flight from Harlingen Valley Intl to Colorado
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Highest demand for flights based on searches. 7% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Harlingen to Colorado

Cheapest flights from Harlingen to Colorado
Explore the most affordable flight options available from Harlingen to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. 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 8/306:30 pmHRL - DEN
1 stop4h 45mAmerican Airlines
Wed 9/35:06 pmDEN - HRL
1 stop4h 51mAmerican Airlines
Deal found 8/17$223
This Southwest deal was found by Cheapflights users on 8/17. 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 10/198:15 pmHRL - DEN
1 stop4h 40mSouthwest
Fri 10/245:40 pmDEN - HRL
1 stop4h 50mSouthwest
Deal found 8/17$229
This Southwest deal was found by Cheapflights users on 8/16. 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 9/137:25 amHRL - DEN
1 stop7h 30mSouthwest
Sat 9/201:45 pmDEN - HRL
2 stops6h 40mSouthwest
Deal found 8/16$234
This Southwest deal was found by Cheapflights users on 8/17. 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 11/215:45 amHRL - DEN
2 stops7h 30mSouthwest
Thu 11/275:40 amDEN - HRL
1 stop4h 30mSouthwest
Deal found 8/17$248
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Mon 9/156:35 pmHRL - COS
1 stop4h 33mAmerican Airlines
Fri 9/195:16 pmCOS - HRL
1 stop4h 41mAmerican Airlines
Deal found 8/17$259
This American Airlines deal was found by Cheapflights users on 8/18. 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 9/246:35 pmHRL - DEN
1 stop4h 34mAmerican Airlines
Mon 9/295:44 amDEN - HRL
1 stop7h 35mAmerican Airlines
Deal found 8/18$296
This Southwest deal was found by Cheapflights users on 8/16. 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 9/269:30 amHRL - DEN
2 stops7h 30mSouthwest
Mon 9/291:30 pmDEN - HRL
2 stops7h 00mSouthwest
Deal found 8/16$299
This Southwest deal was found by Cheapflights users on 8/17. 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 9/151:40 pmHRL - COS
2 stops9h 50mSouthwest
Fri 9/1910:35 amCOS - HRL
1 stop5h 35mSouthwest
Deal found 8/17$317
This Booking.com deal was found by Cheapflights users on 8/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2211:43 amHRL - DEN
1 stop6h 19mSun Country Air
Sun 12/287:08 pmDEN - HRL
1 stop14h 06mSun Country Air
Deal found 8/17$345

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Colorado 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 August 18, 2025.
Use the filters below to find and compare flights from Harlingen to Colorado that are best for you.

Fly from

Harlingen

Fly to

Colorado

Route

Depart

Return

Price

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sat 8/30

6:30 pm-10:15 pm

1 stop4h 45m

Denver Intl

Wed 9/3

5:06 pm-10:57 pm

1 stop4h 51m

$223

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sat 9/13

6:15 am-10:15 am

1 stop5h 00m

Denver Intl

Sat 9/20

9:30 am-3:05 pm

1 stop4h 35m

$229

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Fri 9/26

5:45 pm-9:40 pm

1 stop4h 55m

Denver Intl

Mon 9/29

5:55 am-1:00 pm

1 stop6h 05m

$229

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sun 10/19

6:00 am-9:35 am

1 stop4h 35m

Denver Intl

Fri 10/24

3:10 pm-10:35 pm

1 stop6h 25m

$229

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Fri 11/21

8:05 pm-12:10 am

1 stop5h 05m

Denver Intl

Thu 11/27

5:40 am-11:10 am

1 stop4h 30m

$229

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Mon 9/15

6:35 pm-10:08 pm

1 stop4h 33m

Colorado Springs

Fri 9/19

5:16 pm-10:57 pm

1 stop4h 41m

$259

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Mon 9/15

1:40 pm-10:30 pm

2 stops9h 50m

Colorado Springs

Fri 9/19

10:35 am-5:10 pm

1 stop5h 35m

$317

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Sat 9/13

6:35 pm-10:08 pm

1 stop4h 33m

$115

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Sat 9/13

7:25 am-2:40 pm

2 stops8h 15m

$180

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sat 1/3

5:00 am-12:10 pm

1 stop8h 10m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Best time to book a flight from Harlingen to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Harlingen 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 Harlingen to Colorado

What is the cheapest month to book a flight from Harlingen, Texas to Colorado?

Currently, October is the cheapest month in which you can book a flight from Harlingen, Texas to Colorado (average of $197). Flying from Harlingen, Texas to Colorado in March is currently the most expensive (average of $278). 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 HRL to CO?

Find hourly flight availability from Harlingen to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

When flying from Harlingen, Texas to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated August 18, 2025.
Get a feel of what it's like to fly with Southwest and American Airlines from Harlingen to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Colorado. 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 from for flights from Harlingen to Colorado?

    Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Colorado.

  • How long is the flight from Harlingen, Texas to Colorado?

    For as low as $223, American Airlines can have you in Colorado from Harlingen, Texas in 4h 45m. There are 1024 mi between Harlingen, Texas and Colorado. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Harlingen, Texas to Colorado one-way?

    One-way options have recently been found by users for as low as $115 on American Airlines. Other airlines that offer cheap prices include Southwest from $180 and United Airlines from $200 one-way.

  • Can I find deals for flights from Harlingen to Colorado that include hotel bookings?

    Yes. In addition to deals on Harlingen to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Colorado.

  • Can I find deals for business class flights from Harlingen to Colorado?

    Yes. Cheapflights offers flight deals from Harlingen to Colorado 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 Harlingen, Texas to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Harlingen, Texas to Colorado (average of $197). Flying from Harlingen, Texas to Colorado in March is currently the most expensive (average of $278). 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.

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Alternative routes for Harlingen to Colorado

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Top 2 airlines flying from Harlingen to Colorado

Discover the top 2 airlines that operate flights from Harlingen to Colorado. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$330FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$199Average$351FlexibilityNo cancel feeOn-time71%

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