Which airport is the most popular layover for flights between Harlingen, Texas and Washington, D.C.?

Houston (HOU) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Harlingen, Texas to Washington, D.C.?

Flights via Houston (HOU) offer the lowest average round-trip price of $256.

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

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

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, Texas according to our data. United Airlines is the first choice among our users, with 50% 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.

Which layover airport has the shortest connection time from Harlingen, Texas to Washington, D.C.?

Minneapolis (MSP) has the shortest average layover time for this route: 0h 54m.

Which layover airport has the shortest travel time from Harlingen, Texas to Washington, D.C.?

Flights connecting via Houston (HOU) have the shortest average one-way travel time: 4h 45m.

How many flights depart from Harlingen, Texas to Washington, D.C. on average per week?

The number of flights available between Harlingen, Texas and Washington, D.C. is 2 per week as of February 2026. The most frequent departure day is Mon, with 50% of weekly flights leaving on this day.

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 February 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.

$166 Cheap Flights from Harlingen to Washington, D.C. in 2026

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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:02 pm - 11:26 pm

HRL

BWI

6h 24m

1 stop

6:08 am - 3:05 pm

BWI

HRL

9h 57m

1 stop

$277Delta

Thu, Apr 30 - Mon, May 4

5:18 pm - 11:59 pm

HRL

DCA

5h 41m

1 stop

6:00 am - 11:23 am

DCA

HRL

6h 23m

1 stop

$289United Airlines

Thu, Apr 9 - Mon, Apr 13

4:02 pm - 11:32 pm

HRL

IAD

6h 30m

1 stop

6:00 am - 3:05 pm

IAD

HRL

10h 05m

1 stop

$289Delta

Thu, Apr 30 - Mon, May 4

12:10 pm - 9:05 pm

HRL

DCA

7h 55m

1 stop

4:34 pm - 9:59 pm

DCA

HRL

6h 25m

1 stop

$303United Airlines

Thu, May 7 - Mon, May 11

5:55 am - 2:30 pm

HRL

BWI

7h 35m

1 stop

8:10 am - 1:30 pm

BWI

HRL

6h 20m

1 stop

$312Southwest

Sat, Jul 4 - Tue, Jul 14

5:00 pm - 11:30 pm

HRL

BWI

5h 30m

1 stop

5:00 pm - 11:00 pm

BWI

HRL

7h 00m

2 stops

$314Southwest

Thu, Apr 30 - Mon, May 4

5:55 am - 2:30 pm

HRL

BWI

7h 35m

1 stop

7:00 am - 1:30 pm

BWI

HRL

7h 30m

2 stops

$317Southwest

Sat, Jul 4 - Tue, Jul 14

11:15 am - 8:20 pm

HRL

BWI

8h 05m

2 stops

10:00 am - 4:15 pm

BWI

HRL

7h 15m

2 stops

$322Southwest

Sat, Jul 4 - Tue, Jul 14

2:45 pm - 10:59 pm

HRL

BWI

7h 14m

1 stop

12:38 pm - 11:03 pm

BWI

HRL

11h 25m

2 stops

$323American Airlines

Fri, Feb 27 - Tue, Mar 3

2:45 pm - 10:53 pm

HRL

IAD

7h 08m

1 stop

5:37 pm - 11:03 pm

IAD

HRL

6h 26m

1 stop

$374American Airlines

Fri, Feb 27 - Tue, Mar 3

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

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

United Airlines

Apr 9

HRL5:18 pmHarlingen Valley Intl

5h 41m

1 stop

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

Apr 13

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

6h 23m

1 stop

HRL11:23 amHarlingen Valley Intl

$289

United Airlines

May 7

HRL12:10 pmHarlingen Valley Intl

7h 55m

1 stop

DCA9:05 pmWashington, D.C. Reagan-National

May 11

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

6h 25m

1 stop

HRL9:59 pmHarlingen Valley Intl

$303

United Airlines

Jul 4

HRL2:00 pmHarlingen Valley Intl

7h 45m

1 stop

BWI10:45 pmBaltimore/Washington

Jul 11

BWI3:00 pmBaltimore/Washington

5h 29m

1 stop

HRL7:29 pmHarlingen Valley Intl

$327

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

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

American Airlines

Feb 21

HRL2:45 pmHarlingen Valley Intl

7h 08m

1 stop

IAD10:53 pmWashington, D.C. Dulles Intl

Mar 7

IAD5:37 pmWashington, D.C. Dulles Intl

6h 26m

1 stop

HRL11:03 pmHarlingen Valley Intl

$349

American Airlines

Feb 27

HRL2:45 pmHarlingen Valley Intl

7h 08m

1 stop

IAD10:53 pmWashington, D.C. Dulles Intl

Mar 3

IAD5:37 pmWashington, D.C. Dulles Intl

6h 26m

1 stop

HRL11:03 pmHarlingen Valley Intl

$374

American Airlines

Feb 27

HRL2:45 pmHarlingen Valley Intl

7h 08m

1 stop

IAD10:53 pmWashington, D.C. Dulles Intl

Mar 3

IAD11:30 amWashington, D.C. Dulles Intl

7h 46m

2 stops

HRL6:16 pmHarlingen Valley Intl

$383

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Thu 4/30

4:02 pm-11:26 pm

1 stop6h 24m

Baltimore/Washington

Mon 5/4

6:08 am-3:05 pm

1 stop9h 57m

$277

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 4/9

5:18 pm-11:59 pm

1 stop5h 41m

Washington, D.C. Reagan-National

Mon 4/13

6:00 am-11:23 am

1 stop6h 23m

$289

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Thu 4/30

4:02 pm-11:32 pm

1 stop6h 30m

Washington, D.C. Dulles Intl

Mon 5/4

6:00 am-3:05 pm

1 stop10h 05m

$289

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 5/7

12:10 pm-9:05 pm

1 stop7h 55m

Washington, D.C. Reagan-National

Mon 5/11

4:34 pm-9:59 pm

1 stop6h 25m

$303

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 7/4

5:55 am-2:30 pm

1 stop7h 35m

Baltimore/Washington

Tue 7/14

8:10 am-1:30 pm

1 stop6h 20m

$312

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Thu 4/30

5:00 pm-11:30 pm

1 stop5h 30m

Baltimore/Washington

Mon 5/4

5:00 pm-11:00 pm

2 stops7h 00m

$314

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 7/4

5:55 am-2:30 pm

1 stop7h 35m

Baltimore/Washington

Tue 7/14

7:00 am-1:30 pm

2 stops7h 30m

$317

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 7/4

11:15 am-8:20 pm

2 stops8h 05m

Baltimore/Washington

Tue 7/14

10:00 am-4:15 pm

2 stops7h 15m

$322

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 2/27

2:45 pm-10:59 pm

1 stop7h 14m

Baltimore/Washington

Tue 3/3

12:38 pm-11:03 pm

2 stops11h 25m

$323

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 2/27

2:45 pm-10:53 pm

1 stop7h 08m

Washington, D.C. Dulles Intl

Tue 3/3

5:37 pm-11:03 pm

1 stop6h 26m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen, Texas 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

Layovers

Other information

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

You could potentially save up to 18% on your flight if you consider stops on a Harlingen, Texas to Washington, D.C. flight.

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

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

Fastest flight time	5h 20m
Direct flights	None

The fastest flight from Harlingen, Texas to Washington, D.C. takes 5h 20m

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

Search flight deals

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 20m.
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 February 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, Texas to Washington, D.C.?
Based on momondo bookings for flights between Harlingen, Texas and Washington, D.C., the leading airline is Southwest, making up 100% of the total bookings.

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

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $155	Free Cancellation	Rating 8.0 4,285 reviews		Search Southwest flights
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.4 9,299 reviews		Search United Airlines flights

Southwest Flights From Harlingen, Texas to Washington, D.C.
Southwest flight deals from Harlingen, Texas to Washington, D.C. start from $155 round-trip. Over the 2 Southwest flights for this route in a normal week, average airfare is usually $390 round-trip - but some users have found much cheaper deals with momondo.

Alexandria

National Harbor

Gettysburg

Arlington

Waldorf

Woodbridge

Laurel

Colonial Beach

Tysons

Silver Spring

Towson

Fredericksburg

Gaithersburg

Rockville

Manassas

Springfield

Fairfax

Linthicum Heights

Bethesda

Glen Burnie

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harlingen to Washington, D.C. for you.

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.

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Washington, D.C. Dulles Intl Airport

Cheap flights from Harlingen, Texas to Washington, D.C. from $166

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

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

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

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

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen, Texas 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, Texas to Washington, D.C.

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

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

What airlines fly to Washington, D.C.?

Which airport is the most popular layover for flights between Harlingen, Texas and Washington, D.C.?

Which layover airport offers the lowest fares from Harlingen, Texas to Washington, D.C.?

Which layover airport has the shortest travel time from Harlingen, Texas to Washington, D.C.?

Which layover airport has the shortest connection time from Harlingen, Texas to Washington, D.C.?

How many flights depart from Harlingen, Texas to Washington, D.C. on average per week?

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

Cheap Harlingen, Texas 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, Texas to Washington, D.C.

Fastest flight time

Direct flights

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

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

Southwest Flights From Harlingen, Texas to Washington, D.C.

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. 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 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.

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