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 49% 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.

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

Southwest, American Airlines, and United Airlines are the most popular carriers operating from Harlingen Valley Intl 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 September 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.

$186 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.

7:40 am - 10:55 amHRL Harlingen Valley Intl-DEN Denver Intl

4h 15m1 stop Austin Bergstrom

8:20 am - 3:05 pmDEN Denver Intl-HRL Harlingen Valley Intl

5h 45m1 stop Dallas Love Field

$217Southwest

Wed, Jan 6 - Sat, Jan 9

4:30 pm - 10:00 pmHRL Harlingen Valley Intl-DEN Denver Intl

6h 30m1 stop Houston Hobby

8:25 am - 3:50 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 25m1 stop Houston Hobby

$217Southwest

Thu, Dec 3 - Thu, Dec 10

5:05 am - 12:07 pmHRL Harlingen Valley Intl-DEN Denver Intl

8h 02m1 stop Houston George Bush Intcntl

4:44 pm - 10:48 pmDEN Denver Intl-HRL Harlingen Valley Intl

5h 04m1 stop Houston George Bush Intcntl

$217United Airlines

Thu, Nov 12 - Tue, Nov 17

7:40 am - 10:55 amHRL Harlingen Valley Intl-DEN Denver Intl

4h 15m1 stop Austin Bergstrom

6:10 am - 3:05 pmDEN Denver Intl-HRL Harlingen Valley Intl

7h 55m2 stops Houston Hobby Dallas Love Field

$222Southwest

Wed, Jan 6 - Sat, Jan 9

6:41 pm - 10:46 pmHRL Harlingen Valley Intl-COS Colorado Springs

5h 05m1 stop Dallas/Fort Worth

12:54 pm - 6:11 pmCOS Colorado Springs-HRL Harlingen Valley Intl

4h 17m1 stop Dallas/Fort Worth

$271American Airlines

Sat, Nov 14 - Tue, Nov 17

5:05 am - 12:21 pmHRL Harlingen Valley Intl-COS Colorado Springs

8h 16m2 stops Houston George Bush Intcntl Denver Intl

12:05 pm - 7:47 pmCOS Colorado Springs-HRL Harlingen Valley Intl

6h 42m1 stop Houston George Bush Intcntl

$296United Airlines

Sat, Nov 14 - Tue, Nov 17

5:05 am - 12:21 pmHRL Harlingen Valley Intl-COS Colorado Springs

8h 16m2 stops Houston George Bush Intcntl Denver Intl

1:28 pm - 10:48 pmCOS Colorado Springs-HRL Harlingen Valley Intl

8h 20m2 stops Denver Intl Houston George Bush Intcntl

$301United Airlines

Sat, Nov 14 - Tue, Nov 17

10:44 am - 2:18 pmHRL Harlingen Valley Intl-DEN Denver Intl

4h 34m1 stop Dallas/Fort Worth

6:41 am - 1:56 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 15m1 stop Dallas/Fort Worth

$329American Airlines

Thu, Nov 5 - Mon, Nov 9

10:44 am - 2:18 pmHRL Harlingen Valley Intl-DEN Denver Intl

4h 34m1 stop Dallas/Fort Worth

6:41 am - 1:56 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 15m1 stop Dallas/Fort Worth

$329American Airlines

Thu, Nov 5 - Mon, Nov 9

11:46 am - 11:16 amHRL Harlingen Valley Intl-DEN Denver Intl

24h 30m1 stop Minneapolis St Paul

7:20 pm - 10:44 amDEN Denver Intl-HRL Harlingen Valley Intl

14h 24m1 stop Minneapolis St Paul

$545Sun Country Air

Thu, Dec 17 - Sun, Dec 20

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United Airlines flights from Harlingen to Colorado

Our best United Airlines deals on Harlingen to Colorado flight tickets

United Airlines

Nov 12

HRL5:05 amHarlingen Valley Intl

8h 02m

1 stop

DEN12:07 pmDenver Intl

Nov 17

DEN4:44 pmDenver Intl

5h 04m

1 stop

HRL10:48 pmHarlingen Valley Intl

$217

United Airlines

Nov 14

HRL5:05 amHarlingen Valley Intl

8h 16m

2 stops

COS12:21 pmColorado Springs

Nov 17

COS12:05 pmColorado Springs

6h 42m

1 stop

HRL7:47 pmHarlingen Valley Intl

$296

United Airlines

Nov 14

HRL5:05 amHarlingen Valley Intl

8h 16m

2 stops

COS12:21 pmColorado Springs

Nov 17

COS1:28 pmColorado Springs

8h 20m

2 stops

HRL10:48 pmHarlingen Valley Intl

$301

American Airlines flights from Harlingen to Colorado

Our best American Airlines deals on Harlingen to Colorado flight tickets

American Airlines

Nov 14

HRL6:41 pmHarlingen Valley Intl

5h 05m

1 stop

COS10:46 pmColorado Springs

Nov 17

COS12:54 pmColorado Springs

4h 17m

1 stop

HRL6:11 pmHarlingen Valley Intl

$271

American Airlines

Nov 5

HRL10:44 amHarlingen Valley Intl

4h 34m

1 stop

DEN2:18 pmDenver Intl

Nov 9

DEN6:41 amDenver Intl

6h 15m

1 stop

HRL1:56 pmHarlingen Valley Intl

$329

American Airlines

Sep 11

HRL3:35 pmHarlingen Valley Intl

7h 59m

1 stop

DEN10:34 pmDenver Intl

Sep 13

DEN4:25 pmDenver Intl

5h 23m

1 stop

HRL10:48 pmHarlingen Valley Intl

$463

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Wed 1/6

7:40 am-10:55 am

1 stop4h 15m

Denver Intl

Sat 1/9

8:20 am-3:05 pm

1 stop5h 45m

$217

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 12/3

4:30 pm-10:00 pm

1 stop6h 30m

Denver Intl

Thu 12/10

8:25 am-3:50 pm

1 stop6h 25m

$217

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 11/12

5:05 am-12:07 pm

1 stop8h 02m

Denver Intl

Tue 11/17

4:44 pm-10:48 pm

1 stop5h 04m

$217

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Wed 1/6

7:40 am-10:55 am

1 stop4h 15m

Denver Intl

Sat 1/9

6:10 am-3:05 pm

2 stops7h 55m

$222

Quickest round-trip

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Sat 11/14

6:41 pm-10:46 pm

1 stop5h 05m

Colorado Springs

Tue 11/17

12:54 pm-6:11 pm

1 stop4h 17m

$271

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Sat 11/14

5:05 am-12:21 pm

2 stops8h 16m

Colorado Springs

Tue 11/17

12:05 pm-7:47 pm

1 stop6h 42m

$296

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Sat 11/14

5:05 am-12:21 pm

2 stops8h 16m

Colorado Springs

Tue 11/17

1:28 pm-10:48 pm

2 stops8h 20m

$301

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 11/5

10:44 am-2:18 pm

1 stop4h 34m

Denver Intl

Mon 11/9

6:41 am-1:56 pm

1 stop6h 15m

$329

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 11/5

10:44 am-2:18 pm

1 stop4h 34m

Denver Intl

Mon 11/9

6:41 am-1:56 pm

1 stop6h 15m

$329

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 12/17

11:46 am-11:16 am

1 stop24h 30m

Denver Intl

Sun 12/20

7:20 pm-10:44 am

1 stop14h 24m

$545

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

What is the cheapest month to fly to Colorado?

The month of August is, on average, the cheapest month to fly to Colorado from Harlingen, with most prices found around $268. The month of January is another great option to travel to Colorado, with average flight prices from Harlingen averaging around $298.

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 21% 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

Best Price Found	$186
Fastest flight time	4h 35m
Direct flights	None

The best one-way flight to Colorado from Harlingen in the past 72 hours is $186. The best round-trip flight deal from Harlingen to Colorado found on momondo in the last 72 hours is $217.

The fastest flight from Harlingen to Colorado takes 4h 35m

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 September 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 $197	Free Cancellation	Rating 8.0 4,195 reviews	Search Southwest flights
American Airlines	PriceFrom $223	Free Cancellation	Rating 7.1 12,047 reviews	Search American Airlines flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 10,194 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.