What is the cheapest airline that flies from Harlingen Valley Intl to Colorado?

American Airlines and Southwest are the most popular carriers operating from Harlingen Valley Intl to Colorado

What airlines fly to Colorado?

American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to Colorado from Harlingen according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 4 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

How many flights depart from Harlingen to Colorado on average per week?

3 flights are operational weekly from Harlingen to Colorado as of June 2026. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.

When did momondo last update prices for flights from Harlingen Valley Intl Airport to Colorado?

Prices for flights from Harlingen Valley Intl Airport to Colorado refresh daily.

How many operators does momondo search for flights from Harlingen Valley Intl Airport to Colorado?

The number of operators available for flights from Harlingen Valley Intl Airport to Colorado is 3 as of June 2026.

How old do you have to be to fly from Harlingen Valley Intl Airport to Colorado?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Harlingen Valley Intl Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$96 Cheap Flights from Harlingen to Colorado in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Harlingen to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:10 pm - 11:10 pm

HRL

DEN

7h 00m

1 stop

5:25 am - 10:45 am

DEN

HRL

4h 20m

1 stop

$199Southwest

Sat, Jul 18 - Sat, Jul 25

10:55 am - 5:05 pm

HRL

DEN

7h 10m

2 stops

1:40 pm - 10:00 pm

DEN

HRL

7h 20m

1 stop

$204Southwest

Thu, Aug 13 - Thu, Aug 20

10:55 am - 5:05 pm

HRL

DEN

7h 10m

2 stops

9:05 am - 5:15 pm

DEN

HRL

7h 10m

2 stops

$209Southwest

Thu, Aug 13 - Thu, Aug 20

11:30 am - 5:55 pm

HRL

COS

7h 25m

1 stop

10:25 am - 5:15 pm

COS

HRL

5h 50m

1 stop

$245Southwest

Sat, Aug 22 - Mon, Aug 24

11:30 am - 5:55 pm

HRL

COS

7h 25m

1 stop

3:00 pm - 10:00 pm

COS

HRL

6h 00m

2 stops

$250Southwest

Sat, Aug 22 - Mon, Aug 24

6:05 am - 1:20 pm

HRL

COS

8h 15m

2 stops

3:00 pm - 10:00 pm

COS

HRL

6h 00m

2 stops

$255Southwest

Sat, Aug 22 - Mon, Aug 24

2:10 pm - 6:45 pm

HRL

DEN

5h 35m

1 stop

5:45 am - 1:30 pm

DEN

HRL

6h 45m

1 stop

$274Southwest

Tue, Jul 28 - Wed, Jul 29

10:50 am - 6:35 pm

HRL

DEN

8h 45m

1 stop

5:25 am - 10:45 am

DEN

HRL

4h 20m

1 stop

$276Southwest

Wed, Jul 8 - Sat, Jul 11

5:05 am - 10:45 am

HRL

COS

6h 40m

2 stops

1:29 pm - 9:52 pm

COS

HRL

7h 23m

2 stops

$354United Airlines

Tue, Oct 20 - Wed, Oct 21

5:05 am - 10:58 am

HRL

COS

6h 53m

2 stops

1:29 pm - 9:52 pm

COS

HRL

7h 23m

2 stops

$357United Airlines

Tue, Oct 20 - Wed, Oct 21

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Southwest flights from Harlingen to Colorado

Our best Southwest deals on Harlingen to Colorado flight tickets

Southwest

Jul 18

HRL5:10 pmHarlingen Valley Intl

7h 00m

1 stop

DEN11:10 pmDenver Intl

Jul 25

DEN5:25 amDenver Intl

4h 20m

1 stop

HRL10:45 amHarlingen Valley Intl

$199

Southwest

Aug 13

HRL10:55 amHarlingen Valley Intl

7h 10m

2 stops

DEN5:05 pmDenver Intl

Aug 20

DEN1:40 pmDenver Intl

7h 20m

1 stop

HRL10:00 pmHarlingen Valley Intl

$204

Southwest

Aug 13

HRL10:55 amHarlingen Valley Intl

7h 10m

2 stops

DEN5:05 pmDenver Intl

Aug 20

DEN9:05 amDenver Intl

7h 10m

2 stops

HRL5:15 pmHarlingen Valley Intl

$209

United Airlines flights from Harlingen to Colorado

Our best United Airlines deals on Harlingen to Colorado flight tickets

United Airlines

Oct 20

HRL5:05 amHarlingen Valley Intl

6h 40m

2 stops

COS10:45 amColorado Springs

Oct 21

COS1:29 pmColorado Springs

7h 23m

2 stops

HRL9:52 pmHarlingen Valley Intl

$354

United Airlines

Oct 20

HRL5:05 amHarlingen Valley Intl

6h 53m

2 stops

COS10:58 amColorado Springs

Oct 21

COS1:29 pmColorado Springs

7h 23m

2 stops

HRL9:52 pmHarlingen Valley Intl

$357

United Airlines

Oct 20

HRL5:05 amHarlingen Valley Intl

6h 53m

2 stops

COS10:58 amColorado Springs

Oct 21

COS7:40 amColorado Springs

7h 19m

1 stop

HRL3:59 pmHarlingen Valley Intl

$397

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sat 7/18

5:10 pm-11:10 pm

1 stop7h 00m

Denver Intl

Sat 7/25

5:25 am-10:45 am

1 stop4h 20m

$199

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Thu 8/13

10:55 am-5:05 pm

2 stops7h 10m

Denver Intl

Thu 8/20

1:40 pm-10:00 pm

1 stop7h 20m

$204

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Thu 8/13

10:55 am-5:05 pm

2 stops7h 10m

Denver Intl

Thu 8/20

9:05 am-5:15 pm

2 stops7h 10m

$209

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Sat 8/22

11:30 am-5:55 pm

1 stop7h 25m

Colorado Springs

Mon 8/24

10:25 am-5:15 pm

1 stop5h 50m

$245

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Sat 8/22

11:30 am-5:55 pm

1 stop7h 25m

Colorado Springs

Mon 8/24

3:00 pm-10:00 pm

2 stops6h 00m

$250

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Sat 8/22

6:05 am-1:20 pm

2 stops8h 15m

Colorado Springs

Mon 8/24

3:00 pm-10:00 pm

2 stops6h 00m

$255

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 7/28

2:10 pm-6:45 pm

1 stop5h 35m

Denver Intl

Wed 7/29

5:45 am-1:30 pm

1 stop6h 45m

$274

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Wed 7/8

10:50 am-6:35 pm

1 stop8h 45m

Denver Intl

Sat 7/11

5:25 am-10:45 am

1 stop4h 20m

$276

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Tue 10/20

5:05 am-10:45 am

2 stops6h 40m

Colorado Springs

Wed 10/21

1:29 pm-9:52 pm

2 stops7h 23m

$354

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Tue 10/20

5:05 am-10:58 am

2 stops6h 53m

Colorado Springs

Wed 10/21

1:29 pm-9:52 pm

2 stops7h 23m

$357

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Colorado?

The month of October is, on average, the cheapest month to fly to Colorado from Harlingen, with most prices found around $166. The month of November is another great option to travel to Colorado, with average flight prices from Harlingen averaging around $196.

What is the cheapest Harlingen Valley Intl to Colorado flight route?

Fly from Harlingen Valley Intl to Denver Intl for the best Harlingen Valley Intl - Colorado flight prices

What cabin class options are available on Harlingen to Colorado flights?

There is only 1 cabin class available to choose from on Harlingen to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Harlingen to Colorado flights?

You could potentially save up to 43% on your flight if you consider stops on a Harlingen to Colorado flight.

Cheap Harlingen to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harlingen to Colorado

Fastest flight time	4h 40m
Direct flights	None

The fastest flight from Harlingen to Colorado takes 4h 40m

There are no direct flights from Harlingen to Colorado. There are no popular flight routes from Harlingen to Colorado.

Search flight deals

Frequently asked questions about flying from Harlingen to Colorado

When did momondo last update prices for flights from Harlingen Valley Intl Airport to Colorado?
Prices for flights from Harlingen Valley Intl Airport to Colorado refresh daily.
How many operators does momondo search for flights from Harlingen Valley Intl Airport to Colorado?
The number of operators available for flights from Harlingen Valley Intl Airport to Colorado is 3 as of June 2026.
How old do you have to be to fly from Harlingen Valley Intl Airport to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Harlingen Valley Intl Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The necessary travel and health documents for your Colorado trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Harlingen to Colorado?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Harlingen to Colorado is Embraer 175 (Enhanced Winglets) (100.00% of total bookings).

Best airlines flying from Harlingen to Colorado

Compare and see reviews for airlines that fly from Harlingen to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $196	Free Cancellation	Rating 7.9 4,240 reviews	Search Southwest flights
American Airlines	PriceFrom $196	Free Cancellation	Rating 7.1 11,640 reviews	Search American Airlines flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 9,796 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Harlingen to Colorado?

Finding the right flight to Colorado from Harlingen is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Colorado quick and easy, saving you time and money.

Can I find flights from Harlingen to Colorado with flexible booking policies on momondo?

Flights from Harlingen to Colorado with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Harlingen to Colorado?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Colorado from Harlingen.

I’m not ready to book a flight from Harlingen to Colorado right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Harlingen to Colorado now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Colorado and let you know when they change.