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 43% 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 is the most popular carrier 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 October 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.

$150 Cheap Flights from Harlingen to Colorado in 2026/27

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.

4:30 pm - 10:00 pmHRL Harlingen Valley Intl-COS Colorado Springs

6h 30m1 stop Houston Hobby

1:40 pm - 9:50 pmCOS Colorado Springs-HRL Harlingen Valley Intl

7h 10m1 stop Houston Hobby

$279Southwest

Thu, Dec 3 - Wed, Dec 9

4:30 pm - 10:00 pmHRL Harlingen Valley Intl-COS Colorado Springs

6h 30m1 stop Houston Hobby

11:50 am - 9:50 pmCOS Colorado Springs-HRL Harlingen Valley Intl

9h 00m2 stops Denver Intl Houston Hobby

$284Southwest

Thu, Dec 3 - Wed, Dec 9

1:25 pm - 4:40 pmHRL Harlingen Valley Intl-DEN Denver Intl

4h 15m1 stop Houston Hobby

1:10 pm - 8:45 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 35m1 stop Austin Bergstrom

$319Southwest

Thu, Nov 26 - Tue, Dec 1

5:25 pm - 9:45 pmHRL Harlingen Valley Intl-COS Colorado Springs

5h 20m1 stop Houston George Bush Intcntl

7:35 am - 4:01 pmCOS Colorado Springs-HRL Harlingen Valley Intl

7h 26m1 stop Houston George Bush Intcntl

$327United Airlines

Tue, Nov 10 - Wed, Nov 11

5:05 am - 11:19 amHRL Harlingen Valley Intl-COS Colorado Springs

7h 14m1 stop Houston George Bush Intcntl

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

6h 42m1 stop Houston George Bush Intcntl

$327United Airlines

Tue, Nov 10 - Wed, Nov 11

5:16 pm - 11:37 pmHRL Harlingen Valley Intl-DEN Denver Intl

7h 21m1 stop Houston George Bush Intcntl

4:40 pm - 11:04 pmDEN Denver Intl-HRL Harlingen Valley Intl

5h 24m1 stop Houston George Bush Intcntl

$331United Airlines

Wed, Mar 24 - Fri, Mar 26

2:18 pm - 8:11 pmHRL Harlingen Valley Intl-DEN Denver Intl

6h 53m1 stop Minneapolis St Paul

6:30 am - 1:37 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 07m1 stop Minneapolis St Paul

$341Delta

Wed, Nov 25 - Wed, Dec 2

5:40 am - 9:47 amHRL Harlingen Valley Intl-DEN Denver Intl

5h 07m1 stop Dallas/Fort Worth

3:10 pm - 11:13 pmDEN Denver Intl-HRL Harlingen Valley Intl

7h 03m1 stop Dallas/Fort Worth

$344American Airlines

Thu, Nov 12 - Tue, Dec 1

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

4h 34m1 stop Dallas/Fort Worth

6:20 am - 6:16 pmDEN Denver Intl-HRL Harlingen Valley Intl

10h 56m1 stop Dallas/Fort Worth

$372American Airlines

Wed, Nov 18 - Mon, Nov 23

10:43 am - 3:35 pmHRL Harlingen Valley Intl-DEN Denver Intl

5h 52m1 stop Dallas/Fort Worth

4:23 pm - 10:54 pmDEN Denver Intl-HRL Harlingen Valley Intl

5h 31m1 stop Dallas/Fort Worth

$435American Airlines

Wed, Nov 25 - Wed, Dec 2

Cheap last minute flights

Enter your travel dates to find the best prices.

6:41 pm - 11:48 pmHRL Harlingen Valley Intl-DEN Denver Intl

6h 07m1 stop Dallas/Fort Worth

3:08 pm - 11:31 pmDEN Denver Intl-HRL Harlingen Valley Intl

7h 23m1 stop Dallas/Fort Worth

$452American Airlines

Mon, Nov 2 - Tue, Nov 3

5:50 pm - 9:10 pmHRL Harlingen Valley Intl-DEN Denver Intl

4h 20m1 stop Austin Bergstrom

1:35 pm - 9:45 pmDEN Denver Intl-HRL Harlingen Valley Intl

7h 10m2 stops Dallas Love Field Houston Hobby

$457Southwest

Mon, Nov 2 - Tue, Nov 3

5:50 pm - 12:05 amHRL Harlingen Valley Intl-DEN Denver Intl

7h 15m2 stops Austin Bergstrom Houston Hobby

1:10 pm - 9:45 pmDEN Denver Intl-HRL Harlingen Valley Intl

7h 35m2 stops Austin Bergstrom Houston Hobby

$462Southwest

Mon, Nov 2 - Tue, Nov 3

6:41 pm - 10:20 pmHRL Harlingen Valley Intl-DEN Denver Intl

4h 39m1 stop Dallas/Fort Worth

3:08 pm - 10:59 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 51m1 stop Dallas/Fort Worth

$503American Airlines

Sun, Nov 1 - Mon, Nov 2

10:45 am - 4:25 pmHRL Harlingen Valley Intl-DEN Denver Intl

6h 40m2 stops Austin Bergstrom Houston Hobby

6:30 pm - 11:30 pmDEN Denver Intl-HRL Harlingen Valley Intl

4h 00m1 stop Houston Hobby

$508Southwest

Sun, Nov 1 - Mon, Nov 2

10:45 am - 4:25 pmHRL Harlingen Valley Intl-DEN Denver Intl

6h 40m2 stops Austin Bergstrom Houston Hobby

4:15 pm - 11:30 pmDEN Denver Intl-HRL Harlingen Valley Intl

6h 15m2 stops Austin Bergstrom Houston Hobby

$513Southwest

Sun, Nov 1 - Mon, Nov 2

10:40 am - 4:38 pmHRL Harlingen Valley Intl-DRO Durango La Plata County

6h 58m1 stop Dallas/Fort Worth

5:06 pm - 11:31 pmDRO Durango La Plata County-HRL Harlingen Valley Intl

5h 25m1 stop Dallas/Fort Worth

$564American Airlines

Sat, Oct 31 - Tue, Nov 3

10:40 am - 4:38 pmHRL Harlingen Valley Intl-DRO Durango La Plata County

6h 58m1 stop Dallas/Fort Worth

5:06 pm - 10:59 pmDRO Durango La Plata County-HRL Harlingen Valley Intl

4h 53m1 stop Dallas/Fort Worth

$564American Airlines

Sat, Oct 31 - Wed, Nov 4

10:40 am - 4:38 pmHRL Harlingen Valley Intl-DRO Durango La Plata County

6h 58m1 stop Dallas/Fort Worth

5:06 pm - 11:31 pmDRO Durango La Plata County-HRL Harlingen Valley Intl

5h 25m1 stop Dallas/Fort Worth

$564American Airlines

Sat, Oct 31 - Sat, Nov 7

10:40 am - 4:38 pmHRL Harlingen Valley Intl-DRO Durango La Plata County

6h 58m1 stop Dallas/Fort Worth

11:59 am - 10:59 pmDRO Durango La Plata County-HRL Harlingen Valley Intl

10h 00m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth

$570American Airlines

Sat, Oct 31 - Wed, Nov 4

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Harlingen to Colorado

Our best United Airlines deals on Harlingen to Colorado flight tickets

United Airlines

Dec 11

HRL4:39 pmHarlingen Valley Intl

7h 50m

1 stop

DEN11:29 pmDenver Intl

Dec 17

DEN4:20 pmDenver Intl

4h 39m

1 stop

HRL9:59 pmHarlingen Valley Intl

$224

United Airlines

Nov 10

HRL5:25 pmHarlingen Valley Intl

5h 20m

1 stop

COS9:45 pmColorado Springs

Nov 11

COS7:35 amColorado Springs

7h 26m

1 stop

HRL4:01 pmHarlingen Valley Intl

$327

United Airlines

Nov 10

HRL5:05 amHarlingen Valley Intl

7h 14m

1 stop

COS11:19 amColorado Springs

Nov 11

COS2:55 pmColorado Springs

6h 53m

2 stops

HRL10:48 pmHarlingen Valley Intl

$332

Southwest flights from Harlingen to Colorado

Our best Southwest deals on Harlingen to Colorado flight tickets

Southwest

Dec 3

HRL4:30 pmHarlingen Valley Intl

6h 30m

1 stop

COS10:00 pmColorado Springs

Dec 9

COS1:40 pmColorado Springs

7h 10m

1 stop

HRL9:50 pmHarlingen Valley Intl

$279

Southwest

Dec 11

HRL5:50 pmHarlingen Valley Intl

7h 20m

2 stops

DEN12:10 amDenver Intl

Dec 17

DEN5:35 amDenver Intl

5h 45m

1 stop

HRL12:20 pmHarlingen Valley Intl

$283

Southwest

Dec 3

HRL4:30 pmHarlingen Valley Intl

6h 30m

1 stop

COS10:00 pmColorado Springs

Dec 9

COS11:50 amColorado Springs

9h 00m

2 stops

HRL9:50 pmHarlingen Valley Intl

$284

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Thu 12/3

4:30 pm-10:00 pm

1 stop6h 30m

Colorado Springs

Wed 12/9

1:40 pm-9:50 pm

1 stop7h 10m

$279

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Thu 12/3

4:30 pm-10:00 pm

1 stop6h 30m

Colorado Springs

Wed 12/9

11:50 am-9:50 pm

2 stops9h 00m

$284

Quickest round-trip

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 11/26

1:25 pm-4:40 pm

1 stop4h 15m

Denver Intl

Tue 12/1

1:10 pm-8:45 pm

1 stop6h 35m

$319

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Tue 11/10

5:25 pm-9:45 pm

1 stop5h 20m

Colorado Springs

Wed 11/11

7:35 am-4:01 pm

1 stop7h 26m

$327

HarlingenColorado Springs

HRL Harlingen Valley Intl - COS Colorado Springs

HRLCOS

Harlingen Valley Intl

Tue 11/10

5:05 am-11:19 am

1 stop7h 14m

Colorado Springs

Wed 11/11

12:05 pm-7:47 pm

1 stop6h 42m

$327

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Wed 3/24

5:16 pm-11:37 pm

1 stop7h 21m

Denver Intl

Fri 3/26

4:40 pm-11:04 pm

1 stop5h 24m

$331

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Wed 11/25

2:18 pm-8:11 pm

1 stop6h 53m

Denver Intl

Wed 12/2

6:30 am-1:37 pm

1 stop6h 07m

$341

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Thu 11/12

5:40 am-9:47 am

1 stop5h 07m

Denver Intl

Tue 12/1

3:10 pm-11:13 pm

1 stop7h 03m

$344

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Wed 11/18

10:44 am-2:18 pm

1 stop4h 34m

Denver Intl

Mon 11/23

6:20 am-6:16 pm

1 stop10h 56m

$372

HarlingenDenver

HRL Harlingen Valley Intl - DEN Denver Intl

HRLDEN

Harlingen Valley Intl

Wed 11/25

10:43 am-3:35 pm

1 stop5h 52m

Denver Intl

Wed 12/2

4:23 pm-10:54 pm

1 stop5h 31m

$435

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 November is another great option to travel to Colorado, with average flight prices from Harlingen averaging around $324.

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 45% 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	$150
Fastest flight time	4h 39m
Direct flights	None

The best one-way flight to Colorado from Harlingen in the past 72 hours is $150. The best round-trip flight deal from Harlingen to Colorado found on momondo in the last 72 hours is $279.

The fastest flight from Harlingen to Colorado takes 4h 39m

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 October 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 $198	Free Cancellation	Rating 7.9 4,217 reviews	Search Southwest flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.3 10,454 reviews	Search United Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.0 12,207 reviews	Search American 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.