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Cheap flights from Colorado to Harlingen from $100

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 6/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
11:30 am - 6:00 pm
DEN
-
HRL
5h 30m
1 stop
Southwest Logo
10:50 am - 3:35 pm
HRL
-
DEN
5h 45m
1 stop
$199Southwest
Tue, Jun 16 - Tue, Jun 23
Southwest Logo
5:20 pm - 11:40 pm
DEN
-
HRL
5h 20m
1 stop
Southwest Logo
6:30 pm - 12:15 am
HRL
-
DEN
6h 45m
1 stop
$259Southwest
Thu, Jun 25 - Mon, Jun 29
Delta Logo
6:10 am - 1:31 pm
DEN
-
HRL
6h 21m
1 stop
Delta Logo
2:00 pm - 8:00 pm
HRL
-
DEN
7h 00m
1 stop
$261Delta
Sat, Oct 10 - Fri, Oct 23
Southwest Logo
5:15 am - 11:00 am
DEN
-
HRL
4h 45m
1 stop
Southwest Logo
5:00 pm - 11:05 pm
HRL
-
DEN
7h 05m
1 stop
$278Southwest
Thu, Jun 11 - Wed, Jun 17
American Airlines Logo
12:39 pm - 7:36 pm
DEN
-
HRL
5h 57m
1 stop
American Airlines Logo
4:58 pm - 9:38 pm
HRL
-
DEN
5h 40m
1 stop
$291American Airlines
Sat, Sep 12 - Mon, Sep 14
Southwest Logo
4:55 pm - 11:00 pm
DEN
-
HRL
5h 05m
1 stop
Southwest Logo
6:15 am - 12:45 pm
HRL
-
DEN
7h 30m
2 stops
$298Southwest
Tue, Jun 16 - Tue, Jun 23
Southwest Logo
3:00 pm - 11:00 pm
DEN
-
HRL
7h 00m
1 stop
Southwest Logo
5:35 pm - 9:00 pm
HRL
-
DEN
4h 25m
1 stop
$309Southwest
Mon, Jun 1 - Mon, Jul 13
American Airlines Logo
3:51 pm - 10:56 pm
COS
-
HRL
6h 05m
1 stop
American Airlines Logo
4:58 pm - 10:57 pm
HRL
-
COS
6h 59m
1 stop
$311American Airlines
Sat, Sep 12 - Mon, Sep 14
Southwest Logo
1:45 pm - 11:00 pm
DEN
-
HRL
8h 15m
2 stops
Southwest Logo
5:35 pm - 9:00 pm
HRL
-
DEN
4h 25m
1 stop
$315Southwest
Mon, Jun 1 - Mon, Jul 13
United Airlines Logo
12:51 pm - 9:44 pm
COS
-
HRL
7h 53m
2 stops
United Airlines Logo
2:00 pm - 10:04 pm
HRL
-
COS
9h 04m
2 stops
$411United Airlines
Sat, Sep 12 - Mon, Sep 14

Southwest flights from Colorado to Harlingen

Our best Southwest deals on Colorado to Harlingen flight tickets
Southwest
Jun 19
DEN5:00 amDenver Intl
4h 00m
1 stop
HRL10:00 amHarlingen Valley Intl
Jun 23
HRL5:00 pmHarlingen Valley Intl
7h 05m
1 stop
DEN11:05 pmDenver Intl
$199
Southwest
Jun 19
DEN5:00 amDenver Intl
4h 00m
1 stop
HRL10:00 amHarlingen Valley Intl
Jun 22
HRL6:30 pmHarlingen Valley Intl
6h 45m
1 stop
DEN12:15 amDenver Intl
$259
Southwest
Jun 16
DEN10:15 amDenver Intl
6h 45m
1 stop
HRL6:00 pmHarlingen Valley Intl
Jun 18
HRL6:30 pmHarlingen Valley Intl
6h 45m
1 stop
DEN12:15 amDenver Intl
$278

United Airlines flights from Colorado to Harlingen

Our best United Airlines deals on Colorado to Harlingen flight tickets
United Airlines
Aug 18
DEN5:00 amDenver Intl
7h 24m
1 stop
HRL1:24 pmHarlingen Valley Intl
Aug 19
HRL5:18 pmHarlingen Valley Intl
5h 57m
1 stop
DEN10:15 pmDenver Intl
$354
United Airlines
May 27
DEN3:35 pmDenver Intl
5h 19m
1 stop
HRL9:54 pmHarlingen Valley Intl
May 30
HRL5:20 pmHarlingen Valley Intl
7h 37m
1 stop
DEN11:57 pmDenver Intl
$384
United Airlines
Aug 18
DEN5:00 amDenver Intl
7h 24m
1 stop
HRL1:24 pmHarlingen Valley Intl
Aug 19
HRL5:18 pmHarlingen Valley Intl
5h 57m
1 stop
DEN10:15 pmDenver Intl
$409

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Harlingen 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 May 17, 2026.
Use the filters below to find and compare flights from Colorado to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 6/16

11:30 am-6:00 pm

1 stop5h 30m

Harlingen Valley Intl

Tue 6/23

10:50 am-3:35 pm

1 stop5h 45m

$199

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 6/25

5:20 pm-11:40 pm

1 stop5h 20m

Harlingen Valley Intl

Mon 6/29

6:30 pm-12:15 am

1 stop6h 45m

$259

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 10/10

6:10 am-1:31 pm

1 stop6h 21m

Harlingen Valley Intl

Fri 10/23

2:00 pm-8:00 pm

1 stop7h 00m

$261

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 6/11

5:15 am-11:00 am

1 stop4h 45m

Harlingen Valley Intl

Wed 6/17

5:00 pm-11:05 pm

1 stop7h 05m

$278

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 9/12

12:39 pm-7:36 pm

1 stop5h 57m

Harlingen Valley Intl

Mon 9/14

4:58 pm-9:38 pm

1 stop5h 40m

$291

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Tue 6/16

4:55 pm-11:00 pm

1 stop5h 05m

Harlingen Valley Intl

Tue 6/23

6:15 am-12:45 pm

2 stops7h 30m

$298

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 6/1

3:00 pm-11:00 pm

1 stop7h 00m

Harlingen Valley Intl

Mon 7/13

5:35 pm-9:00 pm

1 stop4h 25m

$309

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 9/12

3:51 pm-10:56 pm

1 stop6h 05m

Harlingen Valley Intl

Mon 9/14

4:58 pm-10:57 pm

1 stop6h 59m

$311

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Mon 6/1

1:45 pm-11:00 pm

2 stops8h 15m

Harlingen Valley Intl

Mon 7/13

5:35 pm-9:00 pm

1 stop4h 25m

$315

Colorado SpringsHarlingen

COS - HRL

COSHRL

Colorado Springs

Sat 9/12

12:51 pm-9:44 pm

2 stops7h 53m

Harlingen Valley Intl

Mon 9/14

2:00 pm-10:04 pm

2 stops9h 04m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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

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?

If you aren’t able to travel during the month of November, then book flights to Harlingen from Colorado during September instead. Flights to Harlingen in September, while not as cheap as those in November, still average around $196.

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

Can stopping save me money on Colorado to Harlingen flights?

You could potentially save up to 24% on your flight if you consider stops on a Colorado to Harlingen flight.

Cheap Colorado to Harlingen flight deals and tips

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

Best Price Found

$476

Fastest flight time

5h 20m

Direct flights

None
The best flight deal from Colorado to Harlingen found on momondo in the last 72 hours is $476
The fastest flight from Colorado to Harlingen takes 5h 20m
There are no direct flights from Colorado to Harlingen. There are no popular flight routes from Colorado to Harlingen.
Search flight deals

Frequently asked questions about flying from Colorado to Harlingen

  • 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?

Best airlines flying from Colorado to Harlingen

Compare and see reviews for airlines that fly from Colorado to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $199Free CancellationRating
8.0
4,292 reviews
Search Southwest flights
American AirlinesPriceFrom $252Free CancellationRating
7.1
11,654 reviews
Search American Airlines flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
9,730 reviews
Search United 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 trip

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Tue 6/16
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