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Cheap flights from Colorado to Harlingen from $116

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Harlingen departing on 12/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Colorado to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
2:25 pm - 8:50 pmDEN-HRL
5h 25m1 stop
Southwest Logo
5:30 pm - 10:05 pmHRL-DEN
5h 35m1 stop
$197Southwest
Find Deal
Wed, Feb 11 - Sun, Feb 15
American Airlines Logo
8:16 am - 2:46 pmCOS-HRL
5h 30m1 stop
American Airlines Logo
11:06 am - 5:41 pmHRL-COS
7h 35m1 stop
$197American Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
United Airlines Logo
7:30 am - 4:06 pmCOS-HRL
7h 36m1 stop
United Airlines Logo
12:10 pm - 9:06 pmHRL-COS
9h 56m2 stops
$222United Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
United Airlines Logo
11:33 am - 9:59 pmCOS-HRL
9h 26m2 stops
United Airlines Logo
12:10 pm - 7:03 pmHRL-COS
7h 53m2 stops
$227United Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 3
Southwest Logo
12:45 pm - 8:50 pmDEN-HRL
7h 05m1 stop
Southwest Logo
8:10 pm - 11:55 pmHRL-DEN
4h 45m1 stop
$228Southwest
Find Deal
Wed, Feb 18 - Sun, Feb 22
Southwest Logo
10:35 am - 9:20 pmDEN-HRL
9h 45m1 stop
Southwest Logo
8:35 pm - 12:15 amHRL-DEN
4h 40m1 stop
$233Southwest
Find Deal
Wed, Dec 31 - Sun, Jan 4
United Airlines Logo
1:25 pm - 7:50 pmDEN-HRL
5h 25m1 stop
United Airlines Logo
9:20 am - 2:31 pmHRL-DEN
6h 11m1 stop
$251United Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Delta Logo
6:10 am - 2:29 pmDEN-HRL
7h 19m1 stop
Delta Logo
3:00 pm - 10:36 pmHRL-DEN
8h 36m1 stop
$259Delta
Find Deal
Tue, Apr 7 - Wed, Apr 8
Delta Logo
5:45 am - 2:43 pmDEN-HRL
7h 58m1 stop
Delta Logo
3:39 pm - 11:14 pmHRL-DEN
8h 35m1 stop
$367Delta
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Fri, Nov 21 - Wed, Nov 26
Sun Country Air Logo
6:44 pm - 10:47 amDEN-HRL
15h 03m1 stop
Sun Country Air Logo
11:49 am - 5:32 pmHRL-DEN
6h 43m1 stop
$535Sun Country Air
Find Deal
Wed, Dec 24 - Wed, Dec 31

American Airlines flights from Colorado to Harlingen, Texas

Our best American Airlines deals on Colorado to Harlingen, Texas flight tickets
American Airlines
Jan 28
COS8:16 amColorado Springs
5h 30m
1 stop
HRL2:46 pmHarlingen Valley Intl
Feb 3
HRL11:06 amHarlingen Valley Intl
7h 35m
1 stop
COS5:41 pmColorado Springs
$197
Find similar
American Airlines
Feb 11
COS3:17 pmColorado Springs
7h 04m
1 stop
HRL11:21 pmHarlingen Valley Intl
Feb 15
HRL8:07 pmHarlingen Valley Intl
4h 47m
1 stop
COS11:54 pmColorado Springs
$258
Find similar
American Airlines
May 2
COS5:11 pmColorado Springs
5h 48m
1 stop
HRL11:59 pmHarlingen Valley Intl
May 9
HRL12:11 pmHarlingen Valley Intl
4h 26m
1 stop
COS3:37 pmColorado Springs
$288
Find similar

United Airlines flights from Colorado to Harlingen, Texas

Our best United Airlines deals on Colorado to Harlingen, Texas flight tickets
United Airlines
Jan 28
COS7:30 amColorado Springs
7h 36m
1 stop
HRL4:06 pmHarlingen Valley Intl
Feb 3
HRL12:10 pmHarlingen Valley Intl
9h 56m
2 stops
COS9:06 pmColorado Springs
$222
Find similar
United Airlines
Jan 28
COS11:33 amColorado Springs
9h 26m
2 stops
HRL9:59 pmHarlingen Valley Intl
Feb 3
HRL12:10 pmHarlingen Valley Intl
7h 53m
2 stops
COS7:03 pmColorado Springs
$227
Find similar
United Airlines
Dec 6
DEN1:25 pmDenver Intl
5h 25m
1 stop
HRL7:50 pmHarlingen Valley Intl
Dec 13
HRL9:20 amHarlingen Valley Intl
6h 11m
1 stop
DEN2:31 pmDenver Intl
$251
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Harlingen, Texas 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Colorado to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 2/11

2:25 pm-8:50 pm

1 stop5h 25m

Harlingen Valley Intl

Sun 2/15

5:30 pm-10:05 pm

1 stop5h 35m

$197

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Wed 1/28

8:16 am-2:46 pm

1 stop5h 30m

Harlingen Valley Intl

Tue 2/3

11:06 am-5:41 pm

1 stop7h 35m

$197

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Wed 1/28

7:30 am-4:06 pm

1 stop7h 36m

Harlingen Valley Intl

Tue 2/3

12:10 pm-9:06 pm

2 stops9h 56m

$222

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Wed 1/28

11:33 am-9:59 pm

2 stops9h 26m

Harlingen Valley Intl

Tue 2/3

12:10 pm-7:03 pm

2 stops7h 53m

$227

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 2/18

12:45 pm-8:50 pm

1 stop7h 05m

Harlingen Valley Intl

Sun 2/22

8:10 pm-11:55 pm

1 stop4h 45m

$228

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 12/31

10:35 am-9:20 pm

1 stop9h 45m

Harlingen Valley Intl

Sun 1/4

8:35 pm-12:15 am

1 stop4h 40m

$233

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 12/6

1:25 pm-7:50 pm

1 stop5h 25m

Harlingen Valley Intl

Sat 12/13

9:20 am-2:31 pm

1 stop6h 11m

$251

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 4/7

6:10 am-2:29 pm

1 stop7h 19m

Harlingen Valley Intl

Wed 4/8

3:00 pm-10:36 pm

1 stop8h 36m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 11/21

5:45 am-2:43 pm

1 stop7h 58m

Harlingen Valley Intl

Wed 11/26

3:39 pm-11:14 pm

1 stop8h 35m

$367

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 12/24

6:44 pm-10:47 am

1 stop15h 03m

Harlingen Valley Intl

Wed 12/31

11:49 am-5:32 pm

1 stop6h 43m

$535

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Harlingen from

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

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

What is the cheapest month to fly to Harlingen, Texas?

The month of February is, on average, the cheapest month to fly to Harlingen, Texas from Colorado, with most prices found around $273. If you are unable to visit Harlingen, Texas during the month of February, then departing from Colorado during the month May is also very affordable. Most momondo users find prices during this month for around $285.

What is the cheapest day to depart on your flight to Harlingen, Texas?

The cheapest day to depart on your flight to Harlingen, Texas is on a Tuesday when prices can be found for as low as $245. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Colorado to Harlingen, Texas for around $354.

What is the cheapest time of day to depart on your flight to Harlingen, Texas?

Our most recent data shows that the best time of day to fly to Harlingen, Texas is in the afternoon. Flights from Colorado to Harlingen, Texas during this time can be as low as $341. Flights at noon are often more expensive with an average ticket price of $362.

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

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

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

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

Cheap Colorado to Harlingen, Texas flight deals and tips

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

Direct flights

None
There are no direct flights from Colorado to Harlingen, Texas. There are no popular flight routes from Colorado to Harlingen, Texas.
Search flight deals

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

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

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

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

    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 Colorado to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The travel and health documents you'll need for your trip to Harlingen Valley Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Harlingen Valley Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Colorado to Harlingen, Texas

Compare and see reviews for airlines that fly from Colorado to Harlingen, Texas with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $199Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $232Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

Why use momondo?

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

Finding the right flight to Harlingen from Colorado 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 Harlingen quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Harlingen from Colorado with this policy.

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

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 Harlingen from Colorado.

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

Yes momondo offers price alerts on flights to Harlingen from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Harlingen, Texas trip

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