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

American Airlines and United Airlines 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, Texas according to our data. American Airlines is the first choice among our users, with 68% 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.

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 December 2025.

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.

$179 Cheap Flights from Harlingen to Colorado in 2025/26

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Find the cheapest flights from Harlingen, Texas to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 pm - 12:10 am

HRL

DEN

5h 00m1 stop

4:35 pm - 9:50 pm

DEN

HRL

4h 15m1 stop

$179Southwest

Mon, Jan 5 - Thu, Jan 8

8:10 pm - 12:10 am

HRL

DEN

5h 00m1 stop

10:50 am - 6:00 pm

DEN

HRL

6h 10m2 stops

$184Southwest

Mon, Jan 5 - Thu, Jan 8

6:00 am - 11:55 am

HRL

DEN

6h 55m2 stops

12:35 pm - 8:50 pm

DEN

HRL

7h 15m2 stops

$189Southwest

Sat, Jan 10 - Mon, Jan 12

6:30 am - 12:15 pm

HRL

DEN

6h 45m1 stop

2:10 pm - 9:50 pm

DEN

HRL

6h 40m1 stop

$244Southwest

Tue, Jan 6 - Tue, Jan 13

8:35 pm - 12:15 am

HRL

DEN

4h 40m1 stop

8:45 am - 5:05 pm

DEN

HRL

7h 20m2 stops

$249Southwest

Sun, Jan 4 - Wed, Jan 7

12:13 pm - 5:35 pm

HRL

COS

6h 22m1 stop

6:12 am - 2:46 pm

COS

HRL

7h 34m1 stop

$284American Airlines

Tue, Dec 16 - Tue, Jan 6

5:25 pm - 9:58 pm

HRL

COS

5h 33m1 stop

12:09 pm - 8:01 pm

COS

HRL

6h 52m1 stop

$287United Airlines

Tue, Jan 27 - Wed, Jan 28

5:25 pm - 9:58 pm

HRL

COS

5h 33m1 stop

10:33 am - 8:01 pm

COS

HRL

8h 28m2 stops

$292United Airlines

Tue, Jan 27 - Wed, Jan 28

7:00 am - 2:34 pm

HRL

COS

8h 34m2 stops

11:33 am - 9:59 pm

COS

HRL

9h 26m2 stops

$297United Airlines

Tue, Jan 27 - Wed, Jan 28

12:13 pm - 5:35 pm

HRL

COS

6h 22m1 stop

12:38 pm - 8:40 pm

COS

HRL

7h 02m1 stop

$470American Airlines

Sat, Dec 13 - Mon, Jan 5

American Airlines flights from Harlingen, Texas to Colorado

Our best American Airlines deals on Harlingen, Texas to Colorado flight tickets

American Airlines

Apr 18

HRL10:05 amHarlingen Valley Intl

6h 41m

1 stop

DEN3:46 pmDenver Intl

Apr 22

DEN6:17 amDenver Intl

4h 15m

1 stop

HRL11:32 amHarlingen Valley Intl

$259

Find similar

American Airlines

May 27

HRL8:10 pmHarlingen Valley Intl

4h 23m

1 stop

DEN11:33 pmDenver Intl

Jun 2

DEN6:46 pmDenver Intl

4h 13m

1 stop

HRL11:59 pmHarlingen Valley Intl

$262

Find similar

American Airlines

Dec 16

HRL12:13 pmHarlingen Valley Intl

6h 22m

1 stop

COS5:35 pmColorado Springs

Jan 6

COS6:12 amColorado Springs

7h 34m

1 stop

HRL2:46 pmHarlingen Valley Intl

$284

Find similar

Southwest flights from Harlingen, Texas to Colorado

Our best Southwest deals on Harlingen, Texas to Colorado flight tickets

Southwest

Jan 5

HRL8:10 pmHarlingen Valley Intl

5h 00m

1 stop

DEN12:10 amDenver Intl

Jan 8

DEN4:35 pmDenver Intl

4h 15m

1 stop

HRL9:50 pmHarlingen Valley Intl

$179

Find similar

Southwest

Jan 5

HRL8:10 pmHarlingen Valley Intl

5h 00m

1 stop

DEN12:10 amDenver Intl

Jan 8

DEN10:50 amDenver Intl

6h 10m

2 stops

HRL6:00 pmHarlingen Valley Intl

$184

Find similar

Southwest

Jan 10

HRL6:00 amHarlingen Valley Intl

6h 55m

2 stops

DEN11:55 amDenver Intl

Jan 12

DEN12:35 pmDenver Intl

7h 15m

2 stops

HRL8:50 pmHarlingen Valley Intl

$189

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen, Texas to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Mon 1/5

8:10 pm-12:10 am

1 stop5h 00m

Denver Intl

Thu 1/8

4:35 pm-9:50 pm

1 stop4h 15m

$179

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Mon 1/5

8:10 pm-12:10 am

1 stop5h 00m

Denver Intl

Thu 1/8

10:50 am-6:00 pm

2 stops6h 10m

$184

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sat 1/10

6:00 am-11:55 am

2 stops6h 55m

Denver Intl

Mon 1/12

12:35 pm-8:50 pm

2 stops7h 15m

$189

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 1/6

6:30 am-12:15 pm

1 stop6h 45m

Denver Intl

Tue 1/13

2:10 pm-9:50 pm

1 stop6h 40m

$244

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Sun 1/4

8:35 pm-12:15 am

1 stop4h 40m

Denver Intl

Wed 1/7

8:45 am-5:05 pm

2 stops7h 20m

$249

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Tue 12/16

12:13 pm-5:35 pm

1 stop6h 22m

Colorado Springs

Tue 1/6

6:12 am-2:46 pm

1 stop7h 34m

$284

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Tue 1/27

5:25 pm-9:58 pm

1 stop5h 33m

Colorado Springs

Wed 1/28

12:09 pm-8:01 pm

1 stop6h 52m

$287

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Tue 1/27

5:25 pm-9:58 pm

1 stop5h 33m

Colorado Springs

Wed 1/28

10:33 am-8:01 pm

2 stops8h 28m

$292

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Tue 1/27

7:00 am-2:34 pm

2 stops8h 34m

Colorado Springs

Wed 1/28

11:33 am-9:59 pm

2 stops9h 26m

$297

HarlingenColorado Springs

HRL - COS

HRLCOS

Harlingen Valley Intl

Sat 12/13

12:13 pm-5:35 pm

1 stop6h 22m

Colorado Springs

Mon 1/5

12:38 pm-8:40 pm

1 stop7h 02m

$470

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen, Texas 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 September is, on average, the cheapest month to fly to Colorado from Harlingen, Texas, with most prices found around $206. The month of October is another great option to travel to Colorado, with average flight prices from Harlingen, Texas averaging around $258.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Harlingen, Texas to Colorado is on a Wednesday when prices can be found for as low as $258. On the other hand, Sunday is the most expensive day to depart from Harlingen, Texas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $485.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $308. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $343 per ticket.

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 Valley Intl to Colorado flights?

There is only 1 cabin class available to choose from on Harlingen Valley Intl 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, Texas to Colorado flights?

You could potentially save up to 10% on your flight if you consider stops on a Harlingen, Texas to Colorado flight.

Cheap Harlingen, Texas to Colorado flight deals and tips

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

Fastest flight time	4h 35m
Direct flights	None

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

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

Search flight deals

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 December 2025.
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, Texas to Colorado?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Harlingen, Texas to Colorado is Embraer 175 (Enhanced Winglets) (100.00% of total bookings).

Best airlines flying from Harlingen, Texas to Colorado

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $196	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
American Airlines	PriceFrom $199	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
United Airlines	PriceFrom $302	Free Cancellation	Rating 7.4 9,092 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.

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Find better results for your trip to Colorado

Popular cities in Colorado

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Flights to Orlandofrom $41

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $40

Flights to Washington, D.C.from $49

Flights to Bostonfrom $55

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Flights to Dallasfrom $52

Flights to Seattlefrom $58

Harlingen, Texas flight routes

Flights from Harlingen Valley Intl to Minneapolis St Paul

Flights from Harlingen Valley Intl to Dallas Love Field

Flights from Harlingen Valley Intl to Houston Hobby

Flights from Harlingen Valley Intl to Austin Bergstrom

Flights from Harlingen Valley Intl to Houston George Bush Intcntl

Flights from Harlingen Valley Intl to Dallas/Fort Worth

Cheap flights from Harlingen, Texas to Colorado from $179

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to Colorado departing on 1/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Harlingen, Texas to Colorado

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

American Airlines flights from Harlingen, Texas to Colorado

Our best American Airlines deals on Harlingen, Texas to Colorado flight tickets

Southwest flights from Harlingen, Texas to Colorado

Our best Southwest deals on Harlingen, Texas to Colorado flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen, Texas to Colorado that are best for you.

See travel insights to Colorado from

How to get the cheapest flight ticket from Harlingen, Texas to Colorado

What is the cheapest month to fly to Colorado?

The month of September is, on average, the cheapest month to fly to Colorado from Harlingen, Texas, with most prices found around $206. The month of October is another great option to travel to Colorado, with average flight prices from Harlingen, Texas averaging around $258.

What is the cheapest day to depart on your flight to Colorado?

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $308. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $343 per ticket.

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 Valley Intl to Colorado flights?

There is only 1 cabin class available to choose from on Harlingen Valley Intl 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, Texas to Colorado flights?

You could potentially save up to 10% on your flight if you consider stops on a Harlingen, Texas to Colorado flight.

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

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

What airlines fly to Colorado?

Cheap Harlingen, Texas to Colorado flight deals and tips

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

Fastest flight time

Direct flights

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

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

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

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

What is the most popular plane model from Harlingen, Texas to Colorado?

Best airlines flying from Harlingen, Texas to Colorado

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

Why use momondo?

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

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

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

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

An easier way to manage your Colorado trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Colorado

Popular cities in Colorado

Popular flights according to clicks in the last 7 days on momondo