What is the cheapest airline that flies from Washington, D.C. Reagan-National to Harlingen Valley Intl?

American Airlines and Southwest are the most popular carriers operating from Washington, D.C. Reagan-National to Harlingen Valley Intl

How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Harlingen Valley Intl Airport?

As of November 2026, there is 1 operator available to choose from for flights 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.

$199 Cheap Flights from Washington, D.C. Reagan-National Airport to Harlingen in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Harlingen

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:00 am - 5:53 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 53m1 stop Dallas/Fort Worth

2:47 pm - 12:25 amHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 38m1 stop Dallas/Fort Worth

$359American Airlines

Wed, Mar 31 - Tue, Apr 6

10:00 am - 6:10 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

9h 10m1 stop Dallas/Fort Worth

2:24 pm - 11:59 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 35m1 stop Dallas/Fort Worth

$367American Airlines

Wed, Dec 2 - Wed, Dec 9

1:05 pm - 5:55 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 50m1 stop Dallas Love Field

6:20 am - 2:20 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 00m2 stops Houston Hobby Atlanta Hartsfield-Jackson

$383Southwest

Wed, Mar 31 - Tue, Apr 6

8:25 am - 3:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 25m2 stops Lambert-St Louis Houston Hobby

1:00 pm - 11:10 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

9h 10m2 stops Austin Bergstrom Kansas City

$388Southwest

Wed, Mar 31 - Tue, Apr 6

6:00 am - 1:37 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 37m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

2:27 pm - 10:10 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 43m1 stop Minneapolis St Paul

$443Delta

Wed, Dec 2 - Wed, Dec 9

4:34 pm - 10:48 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 14m1 stop Houston George Bush Intcntl

5:25 pm - 11:57 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 32m1 stop Houston George Bush Intcntl

$457United Airlines

Mon, Nov 16 - Fri, Nov 20

9:00 am - 5:20 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

9h 20m2 stops Nashville Intl Dallas Love Field

11:40 am - 8:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 15m1 stop Dallas Love Field

$504Southwest

Mon, Nov 16 - Fri, Nov 20

9:00 am - 5:20 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

9h 20m2 stops Nashville Intl Dallas Love Field

5:50 am - 2:00 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 10m2 stops Houston Hobby Dallas Love Field

$529Southwest

Mon, Nov 16 - Fri, Nov 20

6:04 am - 1:54 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 50m2 stops Chicago O'Hare Intl Dallas/Fort Worth

2:24 pm - 11:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 31m2 stops Dallas/Fort Worth Chicago O'Hare Intl

$573American Airlines

Wed, Dec 2 - Wed, Dec 9

10:55 am - 3:39 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 44m1 stop Houston George Bush Intcntl

5:16 pm - 11:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 39m1 stop Houston George Bush Intcntl

$614United Airlines

Wed, Mar 10 - Fri, Mar 12

Cheap last minute flights

Enter your travel dates to find the best prices.

6:05 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 18m1 stop Minneapolis St Paul

2:18 pm - 11:37 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 19m1 stop Minneapolis St Paul

$473Delta

Sat, Nov 7 - Wed, Nov 11

6:10 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 13m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul

2:18 pm - 11:37 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 19m1 stop Minneapolis St Paul

$478Delta

Sat, Nov 7 - Wed, Nov 11

6:05 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 18m1 stop Minneapolis St Paul

2:18 pm - 11:37 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 19m1 stop Minneapolis St Paul

$486Delta

Fri, Nov 6 - Wed, Nov 11

6:05 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 18m1 stop Minneapolis St Paul

2:18 pm - 11:37 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 19m1 stop Minneapolis St Paul

$486Delta

Sun, Nov 8 - Wed, Nov 11

7:00 pm - 11:35 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 35m1 stop Houston Hobby

4:45 pm - 11:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 10m1 stop Houston Hobby

$499Southwest

Fri, Nov 6 - Thu, Nov 12

7:00 pm - 11:35 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 35m1 stop Houston Hobby

1:00 pm - 9:45 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 45m2 stops Houston Hobby Atlanta Hartsfield-Jackson

$504Southwest

Fri, Nov 6 - Thu, Nov 12

6:05 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 18m1 stop Minneapolis St Paul

2:18 pm - 11:37 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 19m1 stop Minneapolis St Paul

$516Delta

Thu, Nov 5 - Wed, Nov 11

6:00 am - 12:20 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 20m1 stop Dallas Love Field

12:45 pm - 9:35 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 50m1 stop Houston Hobby

$519Southwest

Sun, Nov 8 - Sat, Nov 14

8:15 am - 1:21 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 06m1 stop Houston George Bush Intcntl

1:59 pm - 10:15 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 16m1 stop Houston George Bush Intcntl

$545United Airlines

Wed, Nov 4 - Sat, Nov 14

8:15 am - 1:21 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 06m1 stop Houston George Bush Intcntl

5:05 am - 11:47 amHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 42m1 stop Houston George Bush Intcntl

$545United Airlines

Sat, Nov 7 - Sat, Nov 14

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Harlingen flight tickets

United Airlines

Nov 16

DCA4:34 pmWashington, D.C. Reagan-National

7h 14m

1 stop

HRL10:48 pmHarlingen Valley Intl

Nov 20

HRL5:25 pmHarlingen Valley Intl

5h 32m

1 stop

DCA11:57 pmWashington, D.C. Reagan-National

$457

United Airlines

Nov 4

DCA8:15 amWashington, D.C. Reagan-National

6h 06m

1 stop

HRL1:21 pmHarlingen Valley Intl

Nov 14

HRL1:59 pmHarlingen Valley Intl

7h 16m

1 stop

DCA10:15 pmWashington, D.C. Reagan-National

$545

United Airlines

Nov 9

DCA8:15 amWashington, D.C. Reagan-National

8h 46m

1 stop

HRL4:01 pmHarlingen Valley Intl

Nov 14

HRL1:59 pmHarlingen Valley Intl

7h 16m

1 stop

DCA10:15 pmWashington, D.C. Reagan-National

$558

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

Our best Southwest deals on Washington, D.C. Reagan-National Airport to Harlingen flight tickets

Southwest

Mar 31

DCA1:05 pmWashington, D.C. Reagan-National

5h 50m

1 stop

HRL5:55 pmHarlingen Valley Intl

Apr 6

HRL6:20 amHarlingen Valley Intl

7h 00m

2 stops

DCA2:20 pmWashington, D.C. Reagan-National

$383

Southwest

Mar 31

DCA8:25 amWashington, D.C. Reagan-National

8h 25m

2 stops

HRL3:50 pmHarlingen Valley Intl

Apr 6

HRL1:00 pmHarlingen Valley Intl

9h 10m

2 stops

DCA11:10 pmWashington, D.C. Reagan-National

$388

Southwest

Nov 6

DCA7:00 pmWashington, D.C. Reagan-National

5h 35m

1 stop

HRL11:35 pmHarlingen Valley Intl

Nov 12

HRL4:45 pmHarlingen Valley Intl

6h 10m

1 stop

DCA11:55 pmWashington, D.C. Reagan-National

$499

momondo Fare Finder

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

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 3/31

10:00 am-5:53 pm

1 stop8h 53m

Harlingen Valley Intl

Tue 4/6

2:47 pm-12:25 am

1 stop8h 38m

$359

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 12/2

10:00 am-6:10 pm

1 stop9h 10m

Harlingen Valley Intl

Wed 12/9

2:24 pm-11:59 pm

1 stop8h 35m

$367

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 3/31

1:05 pm-5:55 pm

1 stop5h 50m

Harlingen Valley Intl

Tue 4/6

6:20 am-2:20 pm

2 stops7h 00m

$383

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 3/31

8:25 am-3:50 pm

2 stops8h 25m

Harlingen Valley Intl

Tue 4/6

1:00 pm-11:10 pm

2 stops9h 10m

$388

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 12/2

6:00 am-1:37 pm

2 stops8h 37m

Harlingen Valley Intl

Wed 12/9

2:27 pm-10:10 pm

1 stop6h 43m

$443

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Mon 11/16

4:34 pm-10:48 pm

1 stop7h 14m

Harlingen Valley Intl

Fri 11/20

5:25 pm-11:57 pm

1 stop5h 32m

$457

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Mon 11/16

9:00 am-5:20 pm

2 stops9h 20m

Harlingen Valley Intl

Fri 11/20

11:40 am-8:55 pm

1 stop8h 15m

$504

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Mon 11/16

9:00 am-5:20 pm

2 stops9h 20m

Harlingen Valley Intl

Fri 11/20

5:50 am-2:00 pm

2 stops7h 10m

$529

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 12/2

6:04 am-1:54 pm

2 stops8h 50m

Harlingen Valley Intl

Wed 12/9

2:24 pm-11:55 pm

2 stops8h 31m

$573

Quickest round-trip

Washington, D.C.Harlingen

DCA Washington, D.C. Reagan-National - HRL Harlingen Valley Intl

DCAHRL

Washington, D.C. Reagan-National

Wed 3/10

10:55 am-3:39 pm

1 stop5h 44m

Harlingen Valley Intl

Fri 3/12

5:16 pm-11:55 pm

1 stop5h 39m

$614

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

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

Prices

Airlines

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 Washington, D.C. Reagan-National Airport during October instead. Flights to Harlingen in October, while not as cheap as those in November, still average around $0.

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

Best Price Found	$199
Fastest flight time	6h 35m
Direct flights	None

The best one-way flight to Harlingen from Washington, D.C. Reagan-National Airport in the past 72 hours is $199. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Harlingen found on momondo in the last 72 hours is $359.

The fastest flight from Washington, D.C. Reagan-National Airport to Harlingen takes 6h 35m

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.

Search flight deals

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. 6h 35m 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 many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Harlingen Valley Intl Airport?
As of November 2026, there is 1 operator available to choose from for flights from Washington, D.C. Reagan-National Airport to Harlingen Valley Intl Airport.
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.
What is the most popular airline from Washington, D.C. Reagan-National Airport to Harlingen?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. Reagan-National Airport to Harlingen is United Airlines, representing 100% of all bookings.

Best airlines flying from Washington, D.C. Reagan-National Airport to Harlingen

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Harlingen with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.3 10,460 reviews		Search United Airlines flights

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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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Cheap flights from Washington, D.C. Reagan-National Airport to Harlingen from $199

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Harlingen flight tickets

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

Our best Southwest deals on Washington, D.C. Reagan-National Airport to Harlingen flight tickets

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

What is the cheapest month to fly to Harlingen?

What is the cheapest airline that flies from Washington, D.C. Reagan-National to Harlingen Valley Intl?

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

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Harlingen

Best airlines flying from Washington, D.C. Reagan-National Airport to Harlingen

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Harlingen with momondo

Why use momondo?

An easier way to manage your Harlingen 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.

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