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

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

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

American Airlines, United 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. American Airlines is the first choice among our users, with 52% 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 September 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.

$190 Cheap Flights from Harlingen, Texas to Washington, D.C. Reagan-National Airport in 2025

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

Round-trip

One-way

Cheap round-trip flights

5:36 am - 11:59 amHRL-DCA

5h 23m1 stop

6:30 am - 11:40 amDCA-HRL

6h 10m1 stop

$269American Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

3:39 pm - 11:25 pmHRL-DCA

6h 46m1 stop

6:10 am - 2:43 pmDCA-HRL

9h 33m1 stop

$285Delta

Find Deal

Sat, Oct 11 - Sat, Oct 18

6:37 pm - 12:59 amHRL-DCA

5h 22m1 stop

10:55 am - 6:05 pmDCA-HRL

8h 10m2 stops

$330American Airlines

Find Deal

Sat, Oct 11 - Sat, Oct 18

5:36 am - 2:23 pmHRL-DCA

7h 47m2 stops

6:30 am - 11:40 amDCA-HRL

6h 10m1 stop

$339American Airlines

Find Deal

Fri, Dec 5 - Mon, Dec 8

6:37 pm - 12:59 amHRL-DCA

5h 22m1 stop

5:00 am - 9:38 amDCA-HRL

5h 38m1 stop

$345American Airlines

Find Deal

Sat, Oct 11 - Sat, Oct 18

6:35 pm - 1:00 amHRL-DCA

5h 25m1 stop

5:00 am - 9:41 amDCA-HRL

5h 41m1 stop

$349American Airlines

Find Deal

Sat, Sep 27 - Sat, Oct 4

3:39 pm - 11:25 pmHRL-DCA

6h 46m1 stop

6:10 am - 2:43 pmDCA-HRL

9h 33m1 stop

$389Delta

Find Deal

Fri, Oct 10 - Fri, Oct 17

2:05 pm - 10:10 pmHRL-DCA

7h 05m1 stop

6:00 am - 11:18 pmDCA-HRL

18h 18m1 stop

$430United Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

5:17 pm - 10:43 pmHRL-DCA

28h 26m2 stops

6:00 am - 11:18 pmDCA-HRL

18h 18m1 stop

$512United Airlines

Find Deal

Fri, Oct 10 - Mon, Oct 13

6:00 am - 4:15 pmHRL-DCA

9h 15m2 stops

1:10 pm - 7:25 pmDCA-HRL

7h 15m2 stops

$649Southwest

Find Deal

Fri, Oct 10 - Mon, Oct 13

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

Dec 5

HRL5:36 amHarlingen Valley Intl

5h 23m

1 stop

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

Dec 8

DCA6:30 amWashington, D.C. Reagan-National

6h 10m

1 stop

HRL11:40 amHarlingen Valley Intl

$269

Find similar

American Airlines

Oct 11

HRL6:37 pmHarlingen Valley Intl

5h 22m

1 stop

DCA12:59 amWashington, D.C. Reagan-National

Oct 18

DCA10:55 amWashington, D.C. Reagan-National

8h 10m

2 stops

HRL6:05 pmHarlingen Valley Intl

$330

Find similar

American Airlines

Dec 5

HRL5:36 amHarlingen Valley Intl

7h 47m

2 stops

DCA2:23 pmWashington, D.C. Reagan-National

Dec 8

DCA6:30 amWashington, D.C. Reagan-National

6h 10m

1 stop

HRL11:40 amHarlingen Valley Intl

$339

Find similar

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

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

Delta

Oct 11

HRL3:39 pmHarlingen Valley Intl

6h 46m

1 stop

DCA11:25 pmWashington, D.C. Reagan-National

Oct 18

DCA6:10 amWashington, D.C. Reagan-National

9h 33m

1 stop

HRL2:43 pmHarlingen Valley Intl

$285

Find similar

Delta

Oct 10

HRL3:39 pmHarlingen Valley Intl

6h 46m

1 stop

DCA11:25 pmWashington, D.C. Reagan-National

Oct 17

DCA6:10 amWashington, D.C. Reagan-National

9h 33m

1 stop

HRL2:43 pmHarlingen Valley Intl

$389

Find similar

Delta

Oct 10

HRL3:39 pmHarlingen Valley Intl

6h 46m

1 stop

DCA11:25 pmWashington, D.C. Reagan-National

Oct 17

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

9h 43m

2 stops

HRL2:43 pmHarlingen Valley Intl

$783

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

Fri 12/5

5:36 am-11:59 am

1 stop5h 23m

Washington, D.C. Reagan-National

Mon 12/8

6:30 am-11:40 am

1 stop6h 10m

$269

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 10/11

3:39 pm-11:25 pm

1 stop6h 46m

Washington, D.C. Reagan-National

Sat 10/18

6:10 am-2:43 pm

1 stop9h 33m

$285

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 10/11

6:37 pm-12:59 am

1 stop5h 22m

Washington, D.C. Reagan-National

Sat 10/18

10:55 am-6:05 pm

2 stops8h 10m

$330

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 12/5

5:36 am-2:23 pm

2 stops7h 47m

Washington, D.C. Reagan-National

Mon 12/8

6:30 am-11:40 am

1 stop6h 10m

$339

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 10/11

6:37 pm-12:59 am

1 stop5h 22m

Washington, D.C. Reagan-National

Sat 10/18

5:00 am-9:38 am

1 stop5h 38m

$345

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 9/27

6:35 pm-1:00 am

1 stop5h 25m

Washington, D.C. Reagan-National

Sat 10/4

5:00 am-9:41 am

1 stop5h 41m

$349

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 10/10

3:39 pm-11:25 pm

1 stop6h 46m

Washington, D.C. Reagan-National

Fri 10/17

6:10 am-2:43 pm

1 stop9h 33m

$389

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 10/10

2:05 pm-10:10 pm

1 stop7h 05m

Washington, D.C. Reagan-National

Mon 10/13

6:00 am-11:18 pm

1 stop18h 18m

$430

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 10/10

5:17 pm-10:43 pm

2 stops28h 26m

Washington, D.C. Reagan-National

Mon 10/13

6:00 am-11:18 pm

1 stop18h 18m

$512

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 10/10

6:00 am-4:15 pm

2 stops9h 15m

Washington, D.C. Reagan-National

Mon 10/13

1:10 pm-7:25 pm

2 stops7h 15m

$649

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted 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

Direct flights	None

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.

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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 22m, 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 September 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 Southwest, making up 56% of the total bookings. Other popular airlines include United Airlines with 44%.

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
Southwest	PriceFrom $333	Free Cancellation	Rating 8.0 4,245 reviews		Search Southwest flights

Alexandria

Gettysburg

National Harbor

Arlington

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Rockville

Manassas

Reston

Fairfax

Gaithersburg

Glen Burnie

Springfield

Linthicum Heights

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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.

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

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Cheap flights from Harlingen, Texas to Washington, D.C. from $190

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

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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

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

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

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.

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

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 Washington, D.C. Reagan-National Airport?

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

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

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

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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