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Harlingen

$154+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
1 adult, Economy
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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 octubre 16, 2025.

This Delta deal was found by Cheapflights users on 10/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/316:05 amDEN - HRL
1 stop7h 38mDelta
mar. 11/43:39 pmHRL - DEN
1 stop8h 25mDelta
Deal found 10/16$241
This Southwest deal was found by Cheapflights users on 10/15. 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.
mar. 11/255:30 amDEN - HRL
1 stop4h 50mSouthwest
lun. 12/18:35 pmHRL - DEN
1 stop4h 40mSouthwest
Deal found 10/15$255
This Southwest deal was found by Cheapflights users on 10/15. 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.
jue. 11/209:25 amDEN - HRL
1 stop6h 40mSouthwest
lun. 11/248:05 pmHRL - DEN
1 stop5h 05mSouthwest
Deal found 10/15$270
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/306:05 amDEN - HRL
1 stop7h 38mDelta
lun. 11/33:39 pmHRL - DEN
1 stop8h 25mDelta
Deal found 10/14$279
This American Airlines deal was found by Cheapflights users on 10/15. 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.
vie. 10/2410:37 amCOS - HRL
1 stop6h 28mAmerican Airlines
dom. 10/265:23 amHRL - COS
1 stop5h 24mAmerican Airlines
Deal found 10/15$279
This Southwest deal was found by Cheapflights users on 10/15. 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.
vie. 12/121:30 pmDEN - HRL
1 stop4h 55mSouthwest
dom. 12/1412:15 pmHRL - DEN
1 stop6h 35mSouthwest
Deal found 10/15$283
This United Airlines deal was found by Cheapflights users on 10/15. 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.
vie. 10/2412:54 pmCOS - HRL
2 stops9h 24mUnited Airlines
dom. 10/267:00 amHRL - COS
1 stop5h 27mUnited Airlines
Deal found 10/15$284
This Southwest deal was found by Cheapflights users on 10/15. 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.
jue. 10/233:10 pmDEN - HRL
1 stop6h 25mSouthwest
dom. 10/261:30 pmHRL - DEN
1 stop7h 10mSouthwest
Deal found 10/15$309
This United Airlines deal was found by Cheapflights users on 10/15. 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.
jue. 10/301:53 pmCOS - HRL
2 stops7h 01mUnited Airlines
lun. 11/37:00 amHRL - COS
1 stop5h 27mUnited Airlines
Deal found 10/15$309
This Delta deal was found by Cheapflights users on 10/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/215:45 amDEN - HRL
1 stop7h 58mDelta
mié. 11/263:39 pmHRL - DEN
1 stop8h 35mDelta
Deal found 10/15$348
This United Airlines deal was found by Cheapflights users on 10/15. 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.
lun. 10/275:00 amDEN - HRL
1 stop4h 59mUnited Airlines
vie. 10/317:00 amHRL - DEN
1 stop6h 37mUnited Airlines
Deal found 10/15$351
This United Airlines deal was found by Cheapflights users on 10/15. 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.
vie. 11/217:30 amCOS - HRL
1 stop7h 29mUnited Airlines
vie. 11/287:00 amHRL - COS
2 stops10h 28mUnited Airlines
Deal found 10/15$576

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 octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(American Airlines)

One-way from

$154
(Southwest)

Popular in

October

Cheapest in

February

Average price

$378
Provider with most accurate pricing for Denver Intl-Harlingen Valley Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Harlingen Valley Intl flights.
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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. 8% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 16, 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

jue. 1/15

7:50 am-2:46 pm

1 stop5h 56m

Harlingen Valley Intl

lun. 1/19

6:43 pm-10:34 pm

1 stop4h 51m

$217

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

vie. 10/31

6:05 am-2:43 pm

1 stop7h 38m

Harlingen Valley Intl

mar. 11/4

3:39 pm-11:04 pm

1 stop8h 25m

$241

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

mar. 11/25

5:30 am-11:20 am

1 stop4h 50m

Harlingen Valley Intl

lun. 12/1

8:35 pm-12:15 am

1 stop4h 40m

$255

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

mar. 4/7

6:10 am-2:29 pm

1 stop7h 19m

Harlingen Valley Intl

mié. 4/8

3:00 pm-8:03 pm

1 stop6h 03m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

jue. 11/20

9:25 am-5:05 pm

1 stop6h 40m

Harlingen Valley Intl

lun. 11/24

8:05 pm-12:10 am

1 stop5h 05m

$270

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

jue. 10/30

6:05 am-2:43 pm

1 stop7h 38m

Harlingen Valley Intl

lun. 11/3

3:39 pm-11:04 pm

1 stop8h 25m

$279

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

vie. 12/12

5:30 pm-11:35 pm

1 stop5h 05m

Harlingen Valley Intl

dom. 12/14

5:45 am-12:15 pm

2 stops7h 30m

$288

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

mar. 3/17

5:08 pm-12:04 am

1 stop5h 56m

Harlingen Valley Intl

mié. 3/18

7:55 pm-11:25 pm

1 stop4h 30m

$308

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

jue. 10/30

1:53 pm-9:54 pm

2 stops7h 01m

Harlingen Valley Intl

lun. 11/3

7:00 am-11:27 am

1 stop5h 27m

$309

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

mar. 3/17

12:05 pm-7:29 pm

1 stop6h 24m

Harlingen Valley Intl

mié. 3/18

5:16 pm-11:59 pm

2 stops7h 43m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 12 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.

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 octubre 16, 2025.

One of the essential ways to save on airfare from Colorado to Harlingen, Texas is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 29% on airfare.

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, Delta, and Southwest fly from Colorado to Harlingen, Texas in about 4h 50m. The time it takes to get you to your destination can typically vary by up to 2h 48m. 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.

  • 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

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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 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 octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$352FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$232Average$329FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$294Average$386FlexibilityNo cancel feeOn-time69%

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