What airlines fly to Washington, D.C.?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Washington, D.C. from Harlingen according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 3 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Delta, and Southwest are the most popular carriers operating from Harlingen Valley Intl to Washington, D.C.

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

Prices for flights from Harlingen Valley Intl Airport to Washington, D.C. are refreshed on a daily basis.

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

The number of operators available for flights from Harlingen Valley Intl Airport to Washington, D.C. is 2 as of October 2026.

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

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 Harlingen Valley Intl Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$180 Cheap Flights from Harlingen to Washington, D.C. in 2026/27

Discover deals from 900+ travel sites with momondo.

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:32 pm - 9:54 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 22m1 stop Minneapolis St Paul

6:00 am - 1:42 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 42m1 stop Minneapolis St Paul

$348Delta

Wed, Dec 23 - Sat, Jan 2

2:47 pm - 11:57 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 10m1 stop Dallas/Fort Worth

5:00 am - 10:04 amDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 04m1 stop Dallas/Fort Worth

$378American Airlines

Wed, Dec 23 - Tue, Dec 29

2:32 pm - 9:54 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

6h 22m1 stop Minneapolis St Paul

6:00 am - 1:42 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 42m1 stop Minneapolis St Paul

$428Delta

Wed, Dec 23 - Sat, Jan 2

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

5h 32m1 stop Houston George Bush Intcntl

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

7h 14m1 stop Houston George Bush Intcntl

$429United Airlines

Thu, Nov 12 - Mon, Nov 16

2:47 pm - 11:57 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 10m1 stop Dallas/Fort Worth

5:00 am - 10:04 amDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 04m1 stop Dallas/Fort Worth

$439American Airlines

Fri, Dec 18 - Mon, Jan 4

1:59 pm - 8:49 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 50m1 stop Houston George Bush Intcntl

2:38 pm - 7:47 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

6h 09m1 stop Houston George Bush Intcntl

$446United Airlines

Thu, Nov 12 - Mon, Nov 16

2:06 pm - 8:51 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 45m1 stop Houston George Bush Intcntl

8:25 am - 3:53 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 28m1 stop Houston George Bush Intcntl

$447United Airlines

Sat, Jan 23 - Tue, Jan 26

3:40 pm - 11:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 15m1 stop Houston Hobby

5:40 pm - 11:45 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 05m2 stops Nashville Intl Houston Hobby

$452Southwest

Wed, Dec 23 - Sat, Jan 2

11:40 am - 6:15 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 35m1 stop Dallas Love Field

2:40 pm - 9:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 10m2 stops Lambert-St Louis Houston Hobby

$454Southwest

Thu, Nov 12 - Mon, Nov 16

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

7h 45m2 stops Houston Hobby Atlanta Hartsfield-Jackson

6:05 am - 12:10 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

7h 05m2 stops Nashville Intl Houston Hobby

$479Southwest

Thu, Nov 12 - Mon, Nov 16

Cheap last minute flights

Enter your travel dates to find the best prices.

5:05 am - 11:28 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 23m1 stop Houston George Bush Intcntl

5:54 pm - 10:48 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 54m1 stop Houston George Bush Intcntl

$473United Airlines

Tue, Nov 3 - Tue, Nov 3

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

5h 42m1 stop Houston George Bush Intcntl

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

7h 14m1 stop Houston George Bush Intcntl

$473United Airlines

Tue, Nov 3 - Tue, Nov 3

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

5h 42m1 stop Houston George Bush Intcntl

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

7h 14m1 stop Houston George Bush Intcntl

$473United Airlines

Wed, Nov 4 - Wed, Nov 4

6:20 am - 12:05 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

4h 45m1 stop Houston Hobby

2:40 pm - 9:45 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 05m2 stops Lambert-St Louis Houston Hobby

$494Southwest

Tue, Nov 3 - Tue, Nov 3

6:20 am - 12:05 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

4h 45m1 stop Houston Hobby

2:40 pm - 9:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 10m2 stops Lambert-St Louis Houston Hobby

$515Southwest

Wed, Nov 4 - Wed, Nov 4

5:25 pm - 12:37 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

6h 12m1 stop Houston George Bush Intcntl

8:34 am - 1:21 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 47m1 stop Houston George Bush Intcntl

$516United Airlines

Tue, Nov 3 - Thu, Nov 5

7:25 am - 9:55 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

13h 30m2 stops Austin Bergstrom Atlanta Hartsfield-Jackson

6:05 am - 11:05 amDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 00m1 stop Houston Hobby

$527Southwest

Tue, Nov 3 - Thu, Nov 5

5:40 am - 3:21 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 41m2 stops Dallas/Fort Worth Charlotte Douglas

5:10 pm - 11:31 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

7h 21m1 stop Dallas/Fort Worth

$663American Airlines

Tue, Nov 3 - Tue, Nov 3

5:40 am - 3:21 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

8h 41m2 stops Dallas/Fort Worth Charlotte Douglas

6:00 am - 1:56 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 56m2 stops Charlotte Douglas Dallas/Fort Worth

$826American Airlines

Tue, Nov 3 - Thu, Nov 5

5:40 am - 2:17 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

7h 37m2 stops Dallas/Fort Worth Cleveland Hopkins Intl

3:46 pm - 11:31 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 45m2 stops Knoxville McGhee Tyson Dallas/Fort Worth

$1,003American Airlines

Tue, Nov 3 - Tue, Nov 3

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American Airlines flights from Harlingen to Washington, D.C.

Our best American Airlines deals on Harlingen to Washington, D.C. flight tickets

American Airlines

Dec 23

HRL2:47 pmHarlingen Valley Intl

8h 10m

1 stop

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

Dec 29

DCA5:00 amWashington, D.C. Reagan-National

6h 04m

1 stop

HRL10:04 amHarlingen Valley Intl

$378

American Airlines

Dec 18

HRL2:47 pmHarlingen Valley Intl

8h 10m

1 stop

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

Jan 4

DCA5:00 amWashington, D.C. Reagan-National

6h 04m

1 stop

HRL10:04 amHarlingen Valley Intl

$439

American Airlines

Jan 5

HRL7:21 pmHarlingen Valley Intl

26h 34m

1 stop

IAD10:55 pmWashington, D.C. Dulles Intl

Jan 12

IAD5:08 pmWashington, D.C. Dulles Intl

6h 46m

1 stop

HRL10:54 pmHarlingen Valley Intl

$451

United Airlines flights from Harlingen to Washington, D.C.

Our best United Airlines deals on Harlingen to Washington, D.C. flight tickets

United Airlines

Nov 12

HRL5:25 pmHarlingen Valley Intl

5h 32m

1 stop

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

Nov 16

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

7h 14m

1 stop

HRL10:48 pmHarlingen Valley Intl

$429

United Airlines

Nov 12

HRL1:59 pmHarlingen Valley Intl

5h 50m

1 stop

IAD8:49 pmWashington, D.C. Dulles Intl

Nov 16

IAD2:38 pmWashington, D.C. Dulles Intl

6h 09m

1 stop

HRL7:47 pmHarlingen Valley Intl

$446

United Airlines

Jan 23

HRL2:06 pmHarlingen Valley Intl

5h 45m

1 stop

IAD8:51 pmWashington, D.C. Dulles Intl

Jan 26

IAD8:25 amWashington, D.C. Dulles Intl

8h 28m

1 stop

HRL3:53 pmHarlingen Valley Intl

$447

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Wed 12/23

2:32 pm-9:54 pm

1 stop6h 22m

Washington, D.C. Reagan-National

Sat 1/2

6:00 am-1:42 pm

1 stop8h 42m

$348

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Wed 12/23

2:47 pm-11:57 pm

1 stop8h 10m

Washington, D.C. Reagan-National

Tue 12/29

5:00 am-10:04 am

1 stop6h 04m

$378

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Wed 12/23

2:32 pm-9:54 pm

1 stop6h 22m

Washington, D.C. Reagan-National

Sat 1/2

6:00 am-1:42 pm

1 stop8h 42m

$428

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Thu 11/12

5:25 pm-11:57 pm

1 stop5h 32m

Washington, D.C. Reagan-National

Mon 11/16

4:34 pm-10:48 pm

1 stop7h 14m

$429

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Fri 12/18

2:47 pm-11:57 pm

1 stop8h 10m

Washington, D.C. Reagan-National

Mon 1/4

5:00 am-10:04 am

1 stop6h 04m

$439

Quickest round-trip

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - IAD Washington, D.C. Dulles Intl

HRLIAD

Harlingen Valley Intl

Thu 11/12

1:59 pm-8:49 pm

1 stop5h 50m

Washington, D.C. Dulles Intl

Mon 11/16

2:38 pm-7:47 pm

1 stop6h 09m

$446

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - IAD Washington, D.C. Dulles Intl

HRLIAD

Harlingen Valley Intl

Sat 1/23

2:06 pm-8:51 pm

1 stop5h 45m

Washington, D.C. Dulles Intl

Tue 1/26

8:25 am-3:53 pm

1 stop8h 28m

$447

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Wed 12/23

3:40 pm-11:55 pm

1 stop7h 15m

Washington, D.C. Reagan-National

Sat 1/2

5:40 pm-11:45 pm

2 stops7h 05m

$452

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Thu 11/12

11:40 am-6:15 pm

1 stop5h 35m

Washington, D.C. Reagan-National

Mon 11/16

2:40 pm-9:50 pm

2 stops8h 10m

$454

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Thu 11/12

1:00 pm-9:45 pm

2 stops7h 45m

Washington, D.C. Reagan-National

Mon 11/16

6:05 am-12:10 pm

2 stops7h 05m

$479

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen to Washington, D.C.

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 Washington, D.C.?

The month of March is, on average, the cheapest month to fly to Washington, D.C. from Harlingen, with most prices found around $0. If you’re not able to fly to Washington, D.C. in March, then February is your next best option. Flight prices from Harlingen to Washington, D.C. during February average around $0.

When to book flights from Harlingen to Washington, D.C.

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

Estimated round-trip price

Cheap Harlingen to Washington, D.C. (HRL to WAS) flight deals and tips

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

Best Price Found	$180
Fastest flight time	5h 23m
Direct flights	None

The best one-way flight to Washington, D.C. from Harlingen in the past 72 hours is $180. The best round-trip flight deal from Harlingen to Washington, D.C. found on momondo in the last 72 hours is $348.

The fastest flight from Harlingen to Washington, D.C. takes 5h 23m

There are no direct flights from Harlingen to Washington, D.C.. There are no popular flight routes from Harlingen to Washington, D.C..

Search flight deals

Frequently asked questions about flying from Harlingen to Washington, D.C.

How far is Harlingen Valley Intl to Washington, D.C. by plane?
A flight from Harlingen Valley Intl to Washington, D.C. will travel around 1482.9 mi. By plane, this route typically takes 5h 23m.
When did momondo last update prices for flights from Harlingen Valley Intl Airport to Washington, D.C.?
Prices for flights from Harlingen Valley Intl Airport to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from Harlingen Valley Intl Airport to Washington, D.C.?
The number of operators available for flights from Harlingen Valley Intl Airport to Washington, D.C. is 2 as of October 2026.
How old do you have to be to fly from Harlingen Valley Intl Airport to Washington, D.C.?
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 Harlingen Valley Intl Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. 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 Harlingen to Washington, D.C.?
Based on momondo bookings for flights between Harlingen and Washington, D.C., the leading airline is Southwest, making up 100% of the total bookings.

Best airlines flying from Harlingen to Washington, D.C.

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $242	Free Cancellation	Rating 7.9 4,222 reviews		Search Southwest flights
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.3 10,460 reviews		Search United Airlines flights

Alexandria

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Linthicum Heights

Woodbridge

Rockville

Silver Spring

Towson

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Glen Burnie

Edgewood

Colonial Beach

Falls Church

College Park

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

All flight searches from Harlingen to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

Price alerts on flights to Washington, D.C. from Harlingen are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Harlingen to Washington, D.C. from $180

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen to Washington, D.C. departing on 12/25. 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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American Airlines flights from Harlingen to Washington, D.C.

Our best American Airlines deals on Harlingen to Washington, D.C. flight tickets

United Airlines flights from Harlingen to Washington, D.C.

Our best United Airlines deals on Harlingen to Washington, D.C. flight tickets

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

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Harlingen to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

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

What airlines fly to Washington, D.C.?

When to book flights from Harlingen to Washington, D.C.

Cheap Harlingen to Washington, D.C. (HRL to WAS) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Harlingen to Washington, D.C.

Best airlines flying from Harlingen to Washington, D.C.

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

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

Why use momondo?

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

Fly your favorite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

Popular cities in the United States

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