What airlines fly to Washington, D.C. Reagan-National Airport?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. Reagan-National Airport from Harlingen, Texas according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Washington, D.C. Reagan-National Airport. Keep in mind that there are 3 different airlines that fly to Washington, D.C. Reagan-National Airport on a routine basis, so you have a few additional options to choose from.

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

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

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

As of December 2025, there are 2 operators available to choose from for flights from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National Airport.

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

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The required travel and health documents for your Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$267 Cheap Flights from Harlingen, Texas to Washington, D.C. Reagan-National Airport in 2025/26

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Find the cheapest flights from Harlingen, Texas to Washington, D.C.

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 pm - 8:56 pm

HRL

DCA

7h 46m1 stop

2:45 pm - 9:59 pm

DCA

HRL

8h 14m1 stop

$331United Airlines

Sat, Feb 14 - Wed, Feb 18

3:22 pm - 11:00 pm

HRL

DCA

6h 38m1 stop

7:30 am - 2:13 pm

DCA

HRL

7h 43m1 stop

$362American Airlines

Mon, Feb 9 - Thu, Feb 12

5:40 am - 2:45 pm

HRL

DCA

8h 05m2 stops

10:40 am - 5:25 pm

DCA

HRL

7h 45m1 stop

$395Southwest

Mon, Feb 9 - Thu, Feb 12

5:40 am - 2:45 pm

HRL

DCA

8h 05m2 stops

10:40 am - 7:15 pm

DCA

HRL

9h 35m2 stops

$400Southwest

Mon, Feb 9 - Thu, Feb 12

5:25 pm - 11:59 pm

HRL

DCA

5h 34m1 stop

6:00 am - 11:26 am

DCA

HRL

6h 26m1 stop

$405United Airlines

Tue, Jan 6 - Wed, Jan 7

7:00 am - 8:59 pm

HRL

DCA

12h 59m2 stops

4:28 pm - 9:59 pm

DCA

HRL

6h 31m1 stop

$450United Airlines

Sat, Feb 14 - Wed, Feb 18

5:00 am - 11:29 am

HRL

DCA

5h 29m1 stop

6:00 am - 1:26 pm

DCA

HRL

8h 26m1 stop

$494United Airlines

Wed, Dec 31 - Sun, Jan 4

9:20 am - 10:52 pm

HRL

DCA

12h 32m2 stops

8:20 am - 9:59 pm

DCA

HRL

14h 39m2 stops

$570United Airlines

Sat, Feb 14 - Wed, Feb 18

7:00 am - 8:59 pm

HRL

DCA

12h 59m2 stops

10:30 am - 9:59 pm

DCA

HRL

12h 29m2 stops

$587United Airlines

Sat, Feb 14 - Wed, Feb 18

5:00 am - 7:32 pm

HRL

DCA

13h 32m2 stops

6:00 am - 1:26 pm

DCA

HRL

8h 26m1 stop

$1,010United Airlines

Wed, Dec 31 - Sun, Jan 4

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

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

United Airlines

Feb 14

HRL12:10 pmHarlingen Valley Intl

7h 46m

1 stop

DCA8:56 pmWashington, D.C. Reagan-National

Feb 18

DCA2:45 pmWashington, D.C. Reagan-National

8h 14m

1 stop

HRL9:59 pmHarlingen Valley Intl

$331

Find similar

United Airlines

Jan 6

HRL5:25 pmHarlingen Valley Intl

5h 34m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

Jan 7

DCA6:00 amWashington, D.C. Reagan-National

6h 26m

1 stop

HRL11:26 amHarlingen Valley Intl

$405

Find similar

United Airlines

Feb 14

HRL7:00 amHarlingen Valley Intl

12h 59m

2 stops

DCA8:59 pmWashington, D.C. Reagan-National

Feb 18

DCA4:28 pmWashington, D.C. Reagan-National

6h 31m

1 stop

HRL9:59 pmHarlingen Valley Intl

$450

Find similar

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

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

American Airlines

Jan 31

HRL3:22 pmHarlingen Valley Intl

6h 34m

1 stop

DCA10:56 pmWashington, D.C. Reagan-National

Feb 3

DCA10:47 amWashington, D.C. Reagan-National

8h 27m

1 stop

HRL6:14 pmHarlingen Valley Intl

$251

Find similar

American Airlines

Jan 31

HRL11:06 amHarlingen Valley Intl

9h 53m

2 stops

DCA9:59 pmWashington, D.C. Reagan-National

Feb 3

DCA3:59 pmWashington, D.C. Reagan-National

8h 22m

1 stop

HRL11:21 pmHarlingen Valley Intl

$259

Find similar

American Airlines

Jan 31

HRL11:06 amHarlingen Valley Intl

9h 53m

2 stops

DCA9:59 pmWashington, D.C. Reagan-National

Feb 3

DCA9:35 amWashington, D.C. Reagan-National

9h 39m

2 stops

HRL6:14 pmHarlingen Valley Intl

$279

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 2/14

12:10 pm-8:56 pm

1 stop7h 46m

Washington, D.C. Reagan-National

Wed 2/18

2:45 pm-9:59 pm

1 stop8h 14m

$331

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 2/9

3:22 pm-11:00 pm

1 stop6h 38m

Washington, D.C. Reagan-National

Thu 2/12

7:30 am-2:13 pm

1 stop7h 43m

$362

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 2/9

5:40 am-2:45 pm

2 stops8h 05m

Washington, D.C. Reagan-National

Thu 2/12

10:40 am-5:25 pm

1 stop7h 45m

$395

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 2/9

5:40 am-2:45 pm

2 stops8h 05m

Washington, D.C. Reagan-National

Thu 2/12

10:40 am-7:15 pm

2 stops9h 35m

$400

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Tue 1/6

5:25 pm-11:59 pm

1 stop5h 34m

Washington, D.C. Reagan-National

Wed 1/7

6:00 am-11:26 am

1 stop6h 26m

$405

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 2/14

7:00 am-8:59 pm

2 stops12h 59m

Washington, D.C. Reagan-National

Wed 2/18

4:28 pm-9:59 pm

1 stop6h 31m

$450

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Wed 12/31

5:00 am-11:29 am

1 stop5h 29m

Washington, D.C. Reagan-National

Sun 1/4

6:00 am-1:26 pm

1 stop8h 26m

$494

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 2/14

9:20 am-10:52 pm

2 stops12h 32m

Washington, D.C. Reagan-National

Wed 2/18

8:20 am-9:59 pm

2 stops14h 39m

$570

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 2/14

7:00 am-8:59 pm

2 stops12h 59m

Washington, D.C. Reagan-National

Wed 2/18

10:30 am-9:59 pm

2 stops12h 29m

$587

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Wed 12/31

5:00 am-7:32 pm

2 stops13h 32m

Washington, D.C. Reagan-National

Sun 1/4

6:00 am-1:26 pm

1 stop8h 26m

$1,010

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Harlingen, Texas to Washington, D.C. Reagan-National Airport is on a Tuesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Tuesday will often find tickets for as low as $367. Flights from Harlingen, Texas to Washington, D.C. Reagan-National Airport on a Wednesday will generally be more expensive and average around $388. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

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

Estimated round-trip price

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

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

Fastest flight time	5h 29m
Direct flights	None

The fastest flight from Harlingen, Texas to Washington, D.C. Reagan-National Airport takes 5h 29m

There are no direct flights from Harlingen, Texas to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Harlingen, Texas to Washington, D.C. Reagan-National Airport.

Search flight deals

How far is Harlingen Valley Intl to Washington, D.C. Reagan-National by plane?
Harlingen Valley Intl and Washington, D.C. Reagan-National are 1480.9 mi apart from one another. Flights usually cover this in 5h 29m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National Airport?
Prices for flights from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National Airport refresh daily.
How many operators does momondo search for flights from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National Airport?
As of December 2025, there are 2 operators available to choose from for flights from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National Airport.
How old do you have to be to fly from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The required travel and health documents for your Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Harlingen, Texas to Washington, D.C. Reagan-National Airport?
Based on momondo bookings for flights between Harlingen, Texas and Washington, D.C. Reagan-National Airport, the leading airline is United Airlines, making up 55% of the total bookings. Other popular airlines include Southwest with 45%.

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

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $270	Free Cancellation	Rating 7.4 9,093 reviews		Search United Airlines flights
Southwest	PriceFrom $333	Free Cancellation	Rating 7.9 4,250 reviews		Search Southwest flights

Alexandria

National Harbor

Gettysburg

Arlington

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Rockville

Gaithersburg

Reston

Manassas

Fairfax

Glen Burnie

Linthicum Heights

Bethesda

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Harlingen.

Can I find flights from Harlingen to Washington, D.C. with flexible booking policies on momondo?

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

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

Once you have performed a search for Harlingen to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Harlingen. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Harlingen, Texas to Washington, D.C. from $331

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

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

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

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

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

See travel insights to Washington, D.C. from

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

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

What airlines fly to Washington, D.C. Reagan-National Airport?

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

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

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

Fastest flight time

Direct flights

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

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

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

How old do you have to be to fly from Harlingen Valley Intl Airport to Washington, D.C. Reagan-National Airport?

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

What is the most popular airline from Harlingen, Texas to Washington, D.C. Reagan-National Airport?

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

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

Traveling to a place near Washington, D.C.?

Why use momondo?

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

Can I find flights from Harlingen to Washington, D.C. with flexible booking policies on momondo?

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

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

An easier way to manage your Washington, D.C. Reagan-National Airport 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington, D.C.

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