Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Harlingen from $129

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Harlingen departing on 2/26. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Denver to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
12:45 pm - 8:50 pm
DEN
-
HRL
7h 05m
1 stop
Southwest Logo
5:05 am - 10:05 am
HRL
-
DEN
6h 00m
1 stop
$227Southwest
Wed, Mar 4 - Sat, Mar 7
Southwest Logo
9:50 am - 5:05 pm
DEN
-
HRL
6h 15m
2 stops
Southwest Logo
5:05 am - 10:05 am
HRL
-
DEN
6h 00m
1 stop
$232Southwest
Wed, Mar 4 - Sat, Mar 7
Southwest Logo
3:00 pm - 11:00 pm
DEN
-
HRL
7h 00m
1 stop
Southwest Logo
3:40 pm - 10:20 pm
HRL
-
DEN
7h 40m
1 stop
$237Southwest
Fri, Apr 10 - Sat, Apr 11
Southwest Logo
4:35 pm - 9:30 pm
DEN
-
HRL
3h 55m
1 stop
Southwest Logo
5:05 am - 10:05 am
HRL
-
DEN
6h 00m
1 stop
$253Southwest
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
3:05 pm - 9:25 pm
DEN
-
HRL
5h 20m
1 stop
Southwest Logo
6:25 pm - 12:05 am
HRL
-
DEN
6h 40m
1 stop
$258Southwest
Wed, Mar 11 - Mon, Mar 16
Southwest Logo
3:15 pm - 10:50 pm
DEN
-
HRL
6h 35m
2 stops
Southwest Logo
5:05 am - 10:05 am
HRL
-
DEN
6h 00m
1 stop
$278Southwest
Sat, Feb 28 - Sat, Mar 7
Southwest Logo
5:55 pm - 11:30 pm
DEN
-
HRL
4h 35m
1 stop
Southwest Logo
5:25 pm - 11:10 pm
HRL
-
DEN
6h 45m
1 stop
$283Southwest
Fri, Feb 13 - Sat, Feb 21
Southwest Logo
6:00 am - 11:45 am
DEN
-
HRL
4h 45m
1 stop
Southwest Logo
5:05 pm - 10:50 pm
HRL
-
DEN
6h 45m
1 stop
$288Southwest
Thu, Mar 12 - Tue, Mar 17
American Airlines Logo
2:48 pm - 11:03 pm
DEN
-
HRL
7h 15m
1 stop
American Airlines Logo
8:06 pm - 11:54 pm
HRL
-
DEN
4h 48m
1 stop
$294American Airlines
Sat, Feb 14 - Fri, Feb 20
Southwest Logo
1:45 pm - 11:00 pm
DEN
-
HRL
8h 15m
2 stops
Southwest Logo
3:40 pm - 10:20 pm
HRL
-
DEN
7h 40m
1 stop
$307Southwest
Fri, Apr 10 - Sat, Apr 11

Delta flights from Denver to Harlingen, Texas

Our best Delta deals on Denver to Harlingen, Texas flight tickets
Delta
Apr 23
DEN6:30 amDenver Intl
7h 35m
1 stop
HRL3:05 pmHarlingen Valley Intl
Apr 27
HRL4:02 pmHarlingen Valley Intl
8h 13m
1 stop
DEN11:15 pmDenver Intl
$316
Delta
Apr 23
DEN6:30 amDenver Intl
7h 35m
1 stop
HRL3:05 pmHarlingen Valley Intl
Apr 27
HRL4:02 pmHarlingen Valley Intl
8h 13m
1 stop
DEN11:15 pmDenver Intl
$366

Southwest flights from Denver to Harlingen, Texas

Our best Southwest deals on Denver to Harlingen, Texas flight tickets
Southwest
Mar 4
DEN12:45 pmDenver Intl
7h 05m
1 stop
HRL8:50 pmHarlingen Valley Intl
Mar 7
HRL5:05 amHarlingen Valley Intl
6h 00m
1 stop
DEN10:05 amDenver Intl
$227
Southwest
Mar 4
DEN9:50 amDenver Intl
6h 15m
2 stops
HRL5:05 pmHarlingen Valley Intl
Mar 7
HRL5:05 amHarlingen Valley Intl
6h 00m
1 stop
DEN10:05 amDenver Intl
$232
Southwest
Apr 10
DEN3:00 pmDenver Intl
7h 00m
1 stop
HRL11:00 pmHarlingen Valley Intl
Apr 11
HRL3:40 pmHarlingen Valley Intl
7h 40m
1 stop
DEN10:20 pmDenver Intl
$237

momondo Fare Finder

 
Customize your flight search to find flights from Denver 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 February 1, 2026.
Use the filters below to find and compare flights from Denver to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/4

12:45 pm-8:50 pm

1 stop7h 05m

Harlingen Valley Intl

Sat 3/7

5:05 am-10:05 am

1 stop6h 00m

$227

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/4

9:50 am-5:05 pm

2 stops6h 15m

Harlingen Valley Intl

Sat 3/7

5:05 am-10:05 am

1 stop6h 00m

$232

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 4/10

3:00 pm-11:00 pm

1 stop7h 00m

Harlingen Valley Intl

Sat 4/11

3:40 pm-10:20 pm

1 stop7h 40m

$237

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 2/28

4:35 pm-9:30 pm

1 stop3h 55m

Harlingen Valley Intl

Sat 3/7

5:05 am-10:05 am

1 stop6h 00m

$253

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/11

3:05 pm-9:25 pm

1 stop5h 20m

Harlingen Valley Intl

Mon 3/16

6:25 pm-12:05 am

1 stop6h 40m

$258

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 2/28

3:15 pm-10:50 pm

2 stops6h 35m

Harlingen Valley Intl

Sat 3/7

5:05 am-10:05 am

1 stop6h 00m

$278

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 2/13

5:55 pm-11:30 pm

1 stop4h 35m

Harlingen Valley Intl

Sat 2/21

5:25 pm-11:10 pm

1 stop6h 45m

$283

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 3/12

6:00 am-11:45 am

1 stop4h 45m

Harlingen Valley Intl

Tue 3/17

5:05 pm-10:50 pm

1 stop6h 45m

$288

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 2/14

2:48 pm-11:03 pm

1 stop7h 15m

Harlingen Valley Intl

Fri 2/20

8:06 pm-11:54 pm

1 stop4h 48m

$294

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Fri 4/10

1:45 pm-11:00 pm

2 stops8h 15m

Harlingen Valley Intl

Sat 4/11

3:40 pm-10:20 pm

1 stop7h 40m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

See travel insights to Harlingen from

How to get the cheapest flight ticket from Denver 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 October is, on average, the cheapest month to fly to Harlingen, Texas from Denver, with most prices found around $259. If you are unable to visit Harlingen, Texas during the month of October, then departing from Denver during the month February is also very affordable. Most momondo users find prices during this month for around $273.

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

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

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

There is only 1 cabin class available to choose from on Denver Intl 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.

How have Denver to Harlingen, Texas flight prices changed over time?

When to book flights from Denver to Harlingen, Texas

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Harlingen, Texas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Harlingen, Texas (DEN to HRL) flight deals and tips

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

Fastest flight time

2h 53m

Direct flights

Sun

Airports in Harlingen, Texas

1 airport
The fastest flight from Denver to Harlingen, Texas takes 2h 53m
Direct flights go from Denver to Harlingen, Texas on Sunday. There are no airlines offering direct flights.
There is 1 airport in Harlingen, Texas. From Denver there are direct flights to Harlingen Valley Intl (HRL).
Search flight deals

  • How far is Denver Intl to Harlingen Valley Intl by plane?

    Denver Intl and Harlingen Valley Intl are 1025.4 mi apart from one another. A reasonable flight in good conditions will take 2h 53m.

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

    Prices for flights from Denver Intl Airport to Harlingen Valley Intl Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport 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 Denver to Harlingen, Texas?

  • What is the most popular airline from Denver to Harlingen, Texas?

Best airlines flying from Denver to Harlingen, Texas

Compare and see reviews for airlines that fly from Denver to Harlingen, Texas with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $198Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
American AirlinesPriceFrom $238Free CancellationRating
7.2
11,213 reviews
Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Denver to Harlingen flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Harlingen that suits you.

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

Yes. All flights to Harlingen from Denver on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Denver and Harlingen by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Denver to Harlingen flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Harlingen, Texas 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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 3/3
Tue 3/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States