Cheap flights from Washington, D.C. Reagan-National Airport to Harlingen from $329

This is the cheapest round-trip 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 3/10. 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.
Delta Logo
7:40 am - 2:29 pmDCA-HRL
7h 49m1 stop
Delta Logo
3:00 pm - 11:33 pmHRL-DCA
7h 33m1 stop
$329Delta
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
11:40 am - 12:04 amDCA-HRL
13h 24m2 stops
American Airlines Logo
4:12 pm - 12:40 amHRL-DCA
7h 28m1 stop
$354American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
1:44 pm - 12:04 amDCA-HRL
11h 20m2 stops
American Airlines Logo
12:10 pm - 9:07 pmHRL-DCA
7h 57m2 stops
$423American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
American Airlines Logo
7:20 am - 4:10 pmDCA-HRL
9h 50m2 stops
American Airlines Logo
5:50 am - 2:42 pmHRL-DCA
7h 52m2 stops
$424American Airlines
Find Deal
Tue, Mar 10 - Wed, Mar 11
Delta Logo
6:10 am - 2:43 pmDCA-HRL
9h 33m1 stop
Delta Logo
3:39 pm - 11:31 pmHRL-DCA
6h 52m1 stop
$459Delta
Find Deal
Fri, Nov 21 - Sun, Nov 23
Southwest Logo
11:40 am - 7:25 pmDCA-HRL
8h 45m2 stops
Southwest Logo
5:45 am - 4:15 pmHRL-DCA
9h 30m1 stop
$545Southwest
Find Deal
Fri, Nov 21 - Sun, Nov 23
United Airlines Logo
4:34 pm - 9:54 pmDCA-HRL
6h 20m1 stop
United Airlines Logo
5:00 am - 11:30 amHRL-DCA
5h 30m1 stop
$583United Airlines
Find Deal
Tue, Dec 16 - Sun, Jan 4
Southwest Logo
12:05 pm - 7:25 pmDCA-HRL
8h 20m2 stops
Southwest Logo
6:50 am - 2:15 pmHRL-DCA
6h 25m2 stops
$619Southwest
Find Deal
Fri, Nov 21 - Sun, Nov 23
American Airlines Logo
6:30 am - 11:40 amDCA-HRL
6h 10m1 stop
American Airlines Logo
5:34 am - 2:24 pmHRL-DCA
7h 50m2 stops
$659American Airlines
Find Deal
Tue, Dec 16 - Sun, Jan 4
United Airlines Logo
7:30 am - 9:59 pmDCA-HRL
15h 29m2 stops
United Airlines Logo
5:00 am - 11:58 amHRL-DCA
29h 58m2 stops
$908United Airlines
Find Deal
Fri, Dec 19 - Fri, Jan 2

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Harlingen, Texas flight tickets
Delta
Mar 10
DCA7:40 amWashington, D.C. Reagan-National
7h 49m
1 stop
HRL2:29 pmHarlingen Valley Intl
Mar 11
HRL3:00 pmHarlingen Valley Intl
7h 33m
1 stop
DCA11:33 pmWashington, D.C. Reagan-National
Delta
Nov 21
DCA6:10 amWashington, D.C. Reagan-National
9h 33m
1 stop
HRL2:43 pmHarlingen Valley Intl
Nov 23
HRL3:39 pmHarlingen Valley Intl
6h 52m
1 stop
DCA11:31 pmWashington, D.C. Reagan-National

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

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Harlingen, Texas flight tickets
American Airlines
Mar 10
DCA11:40 amWashington, D.C. Reagan-National
13h 24m
2 stops
HRL12:04 amHarlingen Valley Intl
Mar 11
HRL4:12 pmHarlingen Valley Intl
7h 28m
1 stop
DCA12:40 amWashington, D.C. Reagan-National
American Airlines
Mar 10
DCA1:44 pmWashington, D.C. Reagan-National
11h 20m
2 stops
HRL12:04 amHarlingen Valley Intl
Mar 11
HRL12:10 pmHarlingen Valley Intl
7h 57m
2 stops
DCA9:07 pmWashington, D.C. Reagan-National
American Airlines
Mar 10
DCA7:20 amWashington, D.C. Reagan-National
9h 50m
2 stops
HRL4:10 pmHarlingen Valley Intl
Mar 11
HRL5:50 amHarlingen Valley Intl
7h 52m
2 stops
DCA2:42 pmWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 2, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 3/10

7:40 am-2:29 pm

1 stop7h 49m

Harlingen Valley Intl

Wed 3/11

3:00 pm-11:33 pm

1 stop7h 33m

$329

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 3/10

11:40 am-12:04 am

2 stops13h 24m

Harlingen Valley Intl

Wed 3/11

4:12 pm-12:40 am

1 stop7h 28m

$354

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 3/10

1:44 pm-12:04 am

2 stops11h 20m

Harlingen Valley Intl

Wed 3/11

12:10 pm-9:07 pm

2 stops7h 57m

$423

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 3/10

7:20 am-4:10 pm

2 stops9h 50m

Harlingen Valley Intl

Wed 3/11

5:50 am-2:42 pm

2 stops7h 52m

$424

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 11/21

6:10 am-2:43 pm

1 stop9h 33m

Harlingen Valley Intl

Sun 11/23

3:39 pm-11:31 pm

1 stop6h 52m

$459

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 11/21

11:40 am-7:25 pm

2 stops8h 45m

Harlingen Valley Intl

Sun 11/23

5:45 am-4:15 pm

1 stop9h 30m

$545

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 12/16

4:34 pm-9:54 pm

1 stop6h 20m

Harlingen Valley Intl

Sun 1/4

5:00 am-11:30 am

1 stop5h 30m

$583

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 11/21

12:05 pm-7:25 pm

2 stops8h 20m

Harlingen Valley Intl

Sun 11/23

6:50 am-2:15 pm

2 stops6h 25m

$619

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 12/16

6:30 am-11:40 am

1 stop6h 10m

Harlingen Valley Intl

Sun 1/4

5:34 am-2:24 pm

2 stops7h 50m

$659

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 12/19

7:30 am-9:59 pm

2 stops15h 29m

Harlingen Valley Intl

Fri 1/2

5:00 am-11:58 am

2 stops29h 58m

$908

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Harlingen from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport 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 day to depart on your flight to Harlingen, Texas?

The cheapest day to depart on your flight to Harlingen, Texas is on a Wednesday when prices can be found for as low as $389. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Harlingen, Texas for around $567.

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 morning. Flights from Washington, D.C. Reagan-National Airport to Harlingen, Texas during this time can be as low as $444. Flights in the afternoon are often more expensive with an average ticket price of $485.

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

You could potentially save up to 36% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Harlingen, Texas flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Harlingen, Texas 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, Texas (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, Texas

Direct flights

None
There are no direct flights from Washington, D.C. Reagan-National Airport to Harlingen, Texas. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Harlingen, Texas.
  • 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. 6h 10m 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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