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Cheap flights from Washington, D.C. Reagan-National Airport to Harlingen from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Harlingen departing on 6/24. 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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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:00 am - 10:13 am
DCA
-
HRL
6h 13m
1 stop
American Airlines Logo
5:18 pm - 11:59 pm
HRL
-
DCA
5h 41m
1 stop
$316American Airlines
Sat, May 30 - Sat, Jun 6
United Airlines Logo
12:59 pm - 7:49 pm
DCA
-
HRL
7h 50m
1 stop
United Airlines Logo
5:20 pm - 11:59 pm
HRL
-
DCA
5h 39m
1 stop
$317United Airlines
Tue, Jun 23 - Thu, Jun 25
United Airlines Logo
12:40 pm - 7:40 pm
DCA
-
HRL
8h 00m
1 stop
United Airlines Logo
12:05 pm - 9:05 pm
HRL
-
DCA
8h 00m
1 stop
$334United Airlines
Mon, Apr 27 - Thu, Apr 30
American Airlines Logo
5:26 pm - 12:14 am
DCA
-
HRL
7h 48m
2 stops
American Airlines Logo
5:18 pm - 11:59 pm
HRL
-
DCA
5h 41m
1 stop
$344American Airlines
Sat, May 30 - Sat, Jun 6
American Airlines Logo
11:59 am - 7:34 pm
DCA
-
HRL
8h 35m
1 stop
American Airlines Logo
5:18 pm - 11:59 pm
HRL
-
DCA
5h 41m
1 stop
$352American Airlines
Sat, Jun 20 - Sat, Jun 27
United Airlines Logo
8:30 am - 4:04 pm
DCA
-
HRL
8h 34m
1 stop
United Airlines Logo
7:00 am - 1:35 pm
HRL
-
DCA
5h 35m
1 stop
$361United Airlines
Sat, May 2 - Tue, May 5
Delta Logo
6:30 am - 3:05 pm
DCA
-
HRL
9h 35m
1 stop
Delta Logo
4:02 pm - 11:43 pm
HRL
-
DCA
6h 41m
1 stop
$370Delta
Wed, Apr 29 - Sun, May 3
Delta Logo
6:05 am - 3:05 pm
DCA
-
HRL
10h 00m
1 stop
Delta Logo
4:02 pm - 11:43 pm
HRL
-
DCA
6h 41m
1 stop
$379Delta
Mon, Apr 27 - Thu, Apr 30
United Airlines Logo
12:40 pm - 8:00 pm
DCA
-
HRL
8h 20m
1 stop
United Airlines Logo
12:10 pm - 6:50 pm
HRL
-
DCA
5h 40m
1 stop
$390United Airlines
Wed, May 13 - Tue, May 19
American Airlines Logo
5:26 pm - 12:14 am
DCA
-
HRL
7h 48m
2 stops
American Airlines Logo
5:18 pm - 11:59 pm
HRL
-
DCA
5h 41m
1 stop
$391American Airlines
Sat, Jun 20 - Sat, Jun 27

Delta flights from Washington, D.C. Reagan-National Airport to Harlingen

Our best Delta deals on Washington, D.C. Reagan-National Airport to Harlingen flight tickets
Delta
Apr 22
DCA6:30 amWashington, D.C. Reagan-National
9h 35m
1 stop
HRL3:05 pmHarlingen Valley Intl
Apr 28
HRL4:02 pmHarlingen Valley Intl
6h 41m
1 stop
DCA11:43 pmWashington, D.C. Reagan-National
$361
Delta
Apr 29
DCA6:30 amWashington, D.C. Reagan-National
9h 35m
1 stop
HRL3:05 pmHarlingen Valley Intl
May 3
HRL4:02 pmHarlingen Valley Intl
6h 41m
1 stop
DCA11:43 pmWashington, D.C. Reagan-National
$370
Delta
Apr 27
DCA6:05 amWashington, D.C. Reagan-National
10h 00m
1 stop
HRL3:05 pmHarlingen Valley Intl
Apr 30
HRL4:02 pmHarlingen Valley Intl
6h 41m
1 stop
DCA11:43 pmWashington, D.C. Reagan-National
$379

American Airlines flights from Washington, D.C. Reagan-National Airport to Harlingen

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Harlingen flight tickets
American Airlines
May 30
DCA5:00 amWashington, D.C. Reagan-National
6h 13m
1 stop
HRL10:13 amHarlingen Valley Intl
Jun 6
HRL5:18 pmHarlingen Valley Intl
5h 41m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$316
American Airlines
May 30
DCA5:26 pmWashington, D.C. Reagan-National
7h 48m
2 stops
HRL12:14 amHarlingen Valley Intl
Jun 6
HRL5:18 pmHarlingen Valley Intl
5h 41m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$344
American Airlines
Jun 20
DCA11:59 amWashington, D.C. Reagan-National
8h 35m
1 stop
HRL7:34 pmHarlingen Valley Intl
Jun 27
HRL5:18 pmHarlingen Valley Intl
5h 41m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$352

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 April 14, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 5/30

5:00 am-10:13 am

1 stop6h 13m

Harlingen Valley Intl

Sat 6/6

5:18 pm-11:59 pm

1 stop5h 41m

$316

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 6/23

12:59 pm-7:49 pm

1 stop7h 50m

Harlingen Valley Intl

Thu 6/25

5:20 pm-11:59 pm

1 stop5h 39m

$317

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Mon 4/27

12:40 pm-7:40 pm

1 stop8h 00m

Harlingen Valley Intl

Thu 4/30

12:05 pm-9:05 pm

1 stop8h 00m

$334

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 5/30

5:26 pm-12:14 am

2 stops7h 48m

Harlingen Valley Intl

Sat 6/6

5:18 pm-11:59 pm

1 stop5h 41m

$344

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 6/20

11:59 am-7:34 pm

1 stop8h 35m

Harlingen Valley Intl

Sat 6/27

5:18 pm-11:59 pm

1 stop5h 41m

$352

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 5/2

8:30 am-4:04 pm

1 stop8h 34m

Harlingen Valley Intl

Tue 5/5

7:00 am-1:35 pm

1 stop5h 35m

$361

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 4/29

6:30 am-3:05 pm

1 stop9h 35m

Harlingen Valley Intl

Sun 5/3

4:02 pm-11:43 pm

1 stop6h 41m

$370

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Mon 4/27

6:05 am-3:05 pm

1 stop10h 00m

Harlingen Valley Intl

Thu 4/30

4:02 pm-11:43 pm

1 stop6h 41m

$379

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 5/13

12:40 pm-8:00 pm

1 stop8h 20m

Harlingen Valley Intl

Tue 5/19

12:10 pm-6:50 pm

1 stop5h 40m

$390

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 6/20

5:26 pm-12:14 am

2 stops7h 48m

Harlingen Valley Intl

Sat 6/27

5:18 pm-11:59 pm

1 stop5h 41m

$391

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Harlingen from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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

Can stopping save me money on Washington, D.C. Reagan-National Airport to Harlingen flights?

You could potentially save up to 27% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Harlingen flight.

When to book flights from Washington, D.C. Reagan-National Airport to Harlingen

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

Cheap Washington, D.C. Reagan-National Airport to Harlingen (DCA to HRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Harlingen

Fastest flight time

7h 00m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Harlingen takes 7h 00m
There are no direct flights from Washington, D.C. Reagan-National Airport to Harlingen. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Harlingen.
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Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Harlingen

  • How far is Washington, D.C. Reagan-National to Harlingen Valley Intl by plane?

    The distance between Washington, D.C. Reagan-National and Harlingen Valley Intl is about 1480.9 mi. 7h 00m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Harlingen Valley Intl Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Harlingen Valley Intl Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National 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.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Harlingen?

Finding the right flight to Harlingen from Washington, D.C. 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 Washington, D.C. to Harlingen with flexible booking policies on momondo?

momondo does allow users to show only those flights to Harlingen from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Harlingen?

Once all potential Washington, D.C. to Harlingen 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 Washington, D.C. to Harlingen right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Harlingen now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Harlingen and let you know when they change.

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