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Cheap flights from Harlingen, Texas to Denver from $110

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to Denver departing on 4/20. 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 Harlingen, Texas to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
10:45 am - 2:40 pm
HRL
-
DEN
4h 55m
1 stop
Southwest Logo
11:00 am - 5:20 pm
DEN
-
HRL
5h 20m
1 stop
$197Southwest
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
7:10 am - 2:15 pm
HRL
-
DEN
8h 05m
2 stops
Southwest Logo
6:45 am - 12:10 pm
DEN
-
HRL
4h 25m
1 stop
$202Southwest
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
7:10 am - 2:15 pm
HRL
-
DEN
8h 05m
2 stops
Southwest Logo
1:50 pm - 10:00 pm
DEN
-
HRL
7h 10m
2 stops
$207Southwest
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
5:18 pm - 10:15 pm
HRL
-
DEN
5h 57m
1 stop
United Airlines Logo
7:45 am - 4:04 pm
DEN
-
HRL
7h 19m
1 stop
$217United Airlines
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
4:40 pm - 10:35 pm
HRL
-
DEN
6h 55m
1 stop
Southwest Logo
12:05 pm - 5:20 pm
DEN
-
HRL
4h 15m
1 stop
$237Southwest
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
4:40 pm - 10:35 pm
HRL
-
DEN
6h 55m
1 stop
Southwest Logo
1:50 pm - 10:00 pm
DEN
-
HRL
7h 10m
2 stops
$242Southwest
Tue, Apr 7 - Wed, Apr 8
Southwest Logo
6:25 pm - 12:05 am
HRL
-
DEN
6h 40m
1 stop
Southwest Logo
4:15 pm - 11:55 pm
DEN
-
HRL
6h 40m
1 stop
$277Southwest
Thu, Apr 2 - Sat, Apr 4
Southwest Logo
6:25 pm - 12:05 am
HRL
-
DEN
6h 40m
1 stop
Southwest Logo
1:50 pm - 10:00 pm
DEN
-
HRL
7h 10m
2 stops
$282Southwest
Thu, Apr 2 - Tue, Apr 7
Southwest Logo
5:00 pm - 11:25 pm
HRL
-
DEN
7h 25m
1 stop
Southwest Logo
1:45 pm - 11:00 pm
DEN
-
HRL
8h 15m
2 stops
$290Southwest
Thu, May 14 - Mon, May 18
United Airlines Logo
7:00 am - 11:43 am
HRL
-
DEN
5h 43m
1 stop
United Airlines Logo
3:35 pm - 9:59 pm
DEN
-
HRL
5h 24m
1 stop
$297United Airlines
Tue, Apr 14 - Wed, Apr 15

American Airlines flights from Harlingen, Texas to Denver

Our best American Airlines deals on Harlingen, Texas to Denver flight tickets
American Airlines
Apr 18
HRL8:03 pmHarlingen Valley Intl
4h 42m
1 stop
DEN11:45 pmDenver Intl
Apr 22
DEN6:23 amDenver Intl
6h 54m
1 stop
HRL2:17 pmHarlingen Valley Intl
$356
American Airlines
Apr 18
HRL8:03 pmHarlingen Valley Intl
4h 42m
1 stop
DEN11:45 pmDenver Intl
Apr 22
DEN7:26 amDenver Intl
5h 51m
1 stop
HRL2:17 pmHarlingen Valley Intl
$364
American Airlines
Mar 27
HRL8:06 pmHarlingen Valley Intl
4h 48m
1 stop
DEN11:54 pmDenver Intl
Mar 30
DEN4:43 pmDenver Intl
5h 10m
1 stop
HRL10:53 pmHarlingen Valley Intl
$367

Southwest flights from Harlingen, Texas to Denver

Our best Southwest deals on Harlingen, Texas to Denver flight tickets
Southwest
Apr 14
HRL10:45 amHarlingen Valley Intl
4h 55m
1 stop
DEN2:40 pmDenver Intl
Apr 21
DEN11:00 amDenver Intl
5h 20m
1 stop
HRL5:20 pmHarlingen Valley Intl
$197
Southwest
Apr 14
HRL7:10 amHarlingen Valley Intl
8h 05m
2 stops
DEN2:15 pmDenver Intl
Apr 21
DEN6:45 amDenver Intl
4h 25m
1 stop
HRL12:10 pmHarlingen Valley Intl
$202
Southwest
Apr 14
HRL7:10 amHarlingen Valley Intl
8h 05m
2 stops
DEN2:15 pmDenver Intl
Apr 21
DEN1:50 pmDenver Intl
7h 10m
2 stops
HRL10:00 pmHarlingen Valley Intl
$207

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas to Denver 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 March 19, 2026.
Use the filters below to find and compare flights from Harlingen, Texas to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/14

10:45 am-2:40 pm

1 stop4h 55m

Denver Intl

Tue 4/21

11:00 am-5:20 pm

1 stop5h 20m

$197

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/14

7:10 am-2:15 pm

2 stops8h 05m

Denver Intl

Tue 4/21

6:45 am-12:10 pm

1 stop4h 25m

$202

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/14

7:10 am-2:15 pm

2 stops8h 05m

Denver Intl

Tue 4/21

1:50 pm-10:00 pm

2 stops7h 10m

$207

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/14

5:18 pm-10:15 pm

1 stop5h 57m

Denver Intl

Tue 4/21

7:45 am-4:04 pm

1 stop7h 19m

$217

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/7

4:40 pm-10:35 pm

1 stop6h 55m

Denver Intl

Wed 4/8

12:05 pm-5:20 pm

1 stop4h 15m

$237

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/7

4:40 pm-10:35 pm

1 stop6h 55m

Denver Intl

Wed 4/8

1:50 pm-10:00 pm

2 stops7h 10m

$242

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Thu 4/2

6:25 pm-12:05 am

1 stop6h 40m

Denver Intl

Sat 4/4

4:15 pm-11:55 pm

1 stop6h 40m

$277

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Thu 4/2

6:25 pm-12:05 am

1 stop6h 40m

Denver Intl

Tue 4/7

1:50 pm-10:00 pm

2 stops7h 10m

$282

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Thu 5/14

5:00 pm-11:25 pm

1 stop7h 25m

Denver Intl

Mon 5/18

1:45 pm-11:00 pm

2 stops8h 15m

$290

HarlingenDenver

HRL - DEN

HRLDEN

Harlingen Valley Intl

Tue 4/14

7:00 am-11:43 am

1 stop5h 43m

Denver Intl

Wed 4/15

3:35 pm-9:59 pm

1 stop5h 24m

$297

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 Denver from

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

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 Denver?

The cheapest month to fly to Denver from Harlingen, Texas is in September. Flight prices, which tend to average around $206, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until October to fly from Harlingen, Texas, when ticket prices are also cheap, with an average price of $258.

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

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

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

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

You could potentially save up to 41% on your flight if you consider stops on a Harlingen, Texas to Denver flight.

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

When to book flights from Harlingen, Texas to Denver

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

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

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

Fastest flight time

4h 20m

Direct flights

Sun

Airports in Denver

1 airport
The fastest flight from Harlingen, Texas to Denver takes 4h 20m
Direct flights go from Harlingen, Texas to Denver on Sunday. There are no airlines offering direct flights.
There is 1 airport in Denver. From Harlingen, Texas there are direct flights to Denver Intl (DEN).
Search flight deals

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

    Harlingen Valley Intl and Denver Intl are 1025.4 mi apart from one another. Typically, this will take 4h 20m by plane in normal conditions.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Harlingen Valley Intl Airport to Denver Intl Airport.

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

    The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Harlingen, Texas to Denver

Compare and see reviews for airlines that fly from Harlingen, Texas to Denver with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $196Free CancellationRating
8.0
4,319 reviews
Search Southwest flights
American AirlinesPriceFrom $196Free CancellationRating
7.1
11,472 reviews
Search American Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,436 reviews
Search United Airlines flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Manitou Springs
Longmont
Boulder
Greeley
Cripple Creek
Keystone
Lakewood
Westminster
Thornton
Frisco
Winter Park
Grand Lake
Centennial
Englewood
Copper Mountain

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harlingen to Denver for you.

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

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

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

Once all potential Harlingen to Denver flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Denver from Harlingen are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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