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

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

Which airport is the most popular layover for flights between Harlingen 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 has the shortest connection time from Harlingen to Washington, D.C.?

Houston (HOU) has the shortest average layover time for this route: 2h 35m.

Which layover airport has the shortest travel time from Harlingen 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 to Washington, D.C. on average per week?

The number of flights available between Harlingen and Washington, D.C. is 1 per week as of September 2026. The most frequent departure day is Sun, with 100% 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 September 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.

$170 Cheap Flights from Harlingen to Washington, D.C. in 2026

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.

3:40 pm - 12:40 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

8h 00m1 stop Houston Hobby

4:15 pm - 9:50 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

6h 35m1 stop Houston Hobby

$309Southwest

Wed, Nov 25 - Thu, Dec 3

3:40 pm - 12:35 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

7h 55m2 stops Houston Hobby Nashville Intl

4:15 pm - 9:50 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

6h 35m1 stop Houston Hobby

$314Southwest

Wed, Nov 25 - Thu, Dec 3

3:40 pm - 12:55 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

8h 15m2 stops Houston Hobby Atlanta Hartsfield-Jackson

2:35 pm - 9:50 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

8h 15m2 stops Atlanta Hartsfield-Jackson Houston Hobby

$319Southwest

Wed, Nov 25 - Thu, Dec 3

7:10 am - 1:40 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 30m1 stop Houston George Bush Intcntl

10:58 am - 4:01 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 03m1 stop Houston George Bush Intcntl

$339United Airlines

Thu, Oct 29 - Fri, Oct 30

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

6h 12m1 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

$339United Airlines

Thu, Oct 29 - Fri, Oct 30

2:00 pm - 10:30 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

7h 30m1 stop Houston George Bush Intcntl

3:02 pm - 7:44 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

5h 42m1 stop Houston George Bush Intcntl

$340United Airlines

Wed, Sep 30 - Mon, Oct 5

5:30 am - 2:35 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

8h 05m2 stops Houston Hobby Dallas Love Field

6:55 pm - 11:40 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

5h 45m1 stop Houston Hobby

$374Southwest

Thu, Oct 29 - Fri, Oct 30

5:28 pm - 11:59 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 31m1 stop Dallas/Fort Worth

5:00 pm - 10:50 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

6h 50m1 stop Dallas/Fort Worth

$384American Airlines

Wed, Sep 30 - Mon, Oct 5

10:44 am - 11:55 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

12h 11m2 stops Dallas/Fort Worth Chicago O'Hare Intl

11:52 am - 6:11 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 19m1 stop Dallas/Fort Worth

$440American Airlines

Fri, Nov 13 - Sun, Nov 15

10:44 am - 11:55 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

12h 11m2 stops Dallas/Fort Worth Chicago O'Hare Intl

5:00 am - 1:56 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

9h 56m2 stops Charlotte Douglas Dallas/Fort Worth

$447American Airlines

Fri, Nov 13 - Sun, Nov 15

Cheap last minute flights

Enter your travel dates to find the best prices.

5:18 pm - 11:59 pmHRL Harlingen Valley Intl-DCA Washington, D.C. Reagan-National

5h 41m1 stop Houston George Bush Intcntl

6:00 am - 1:23 pmDCA Washington, D.C. Reagan-National-HRL Harlingen Valley Intl

8h 23m1 stop Houston George Bush Intcntl

$566United Airlines

Sun, Sep 20 - Sat, Sep 26

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

3:04 pm - 9:52 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 48m1 stop Houston George Bush Intcntl

$601United Airlines

Sun, Sep 20 - Sat, Sep 26

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

6:25 am - 3:59 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

10h 34m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$606United Airlines

Sun, Sep 20 - Sat, Sep 26

5:05 am - 11:29 amHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

5h 24m1 stop Houston George Bush Intcntl

6:15 am - 1:23 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 08m1 stop Houston George Bush Intcntl

$611United Airlines

Sun, Sep 20 - Sat, Sep 26

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

1:05 pm - 7:39 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 34m1 stop Houston George Bush Intcntl

$665United Airlines

Fri, Sep 18 - Sun, Sep 20

5:05 am - 6:22 pmHRL Harlingen Valley Intl-BWI Baltimore/Washington

12h 17m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

1:05 pm - 7:39 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 34m1 stop Houston George Bush Intcntl

$670United Airlines

Fri, Sep 18 - Sun, Sep 20

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

1:05 pm - 7:39 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

7h 34m1 stop Houston George Bush Intcntl

$689United Airlines

Fri, Sep 18 - Sun, Sep 20

5:51 am - 2:18 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

7h 27m1 stop Dallas/Fort Worth

3:08 pm - 10:48 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 40m1 stop Dallas/Fort Worth

$720American Airlines

Fri, Sep 18 - Sun, Sep 20

5:05 am - 11:45 amHRL Harlingen Valley Intl-BWI Baltimore/Washington

5h 40m1 stop Houston George Bush Intcntl

6:05 am - 3:59 pmBWI Baltimore/Washington-HRL Harlingen Valley Intl

10h 54m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

$754United Airlines

Fri, Sep 18 - Sun, Sep 20

10:45 am - 10:51 pmHRL Harlingen Valley Intl-IAD Washington, D.C. Dulles Intl

11h 06m2 stops Dallas/Fort Worth Charlotte Douglas

3:08 pm - 10:48 pmIAD Washington, D.C. Dulles Intl-HRL Harlingen Valley Intl

8h 40m1 stop Dallas/Fort Worth

$792American Airlines

Fri, Sep 18 - Sun, Sep 20

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

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

United Airlines

Oct 29

HRL5:25 pmHarlingen Valley Intl

6h 12m

1 stop

IAD12:37 amWashington, D.C. Dulles Intl

Oct 30

IAD2:38 pmWashington, D.C. Dulles Intl

6h 09m

1 stop

HRL7:47 pmHarlingen Valley Intl

$339

United Airlines

Sep 30

HRL2:00 pmHarlingen Valley Intl

7h 30m

1 stop

IAD10:30 pmWashington, D.C. Dulles Intl

Oct 5

IAD3:02 pmWashington, D.C. Dulles Intl

5h 42m

1 stop

HRL7:44 pmHarlingen Valley Intl

$340

United Airlines

Nov 24

HRL5:25 pmHarlingen Valley Intl

6h 12m

1 stop

IAD12:37 amWashington, D.C. Dulles Intl

Dec 1

IAD6:00 amWashington, D.C. Dulles Intl

6h 14m

1 stop

HRL11:14 amHarlingen Valley Intl

$359

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

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

American Airlines

Sep 30

HRL5:28 pmHarlingen Valley Intl

5h 31m

1 stop

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

Oct 5

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

6h 50m

1 stop

HRL10:50 pmHarlingen Valley Intl

$384

American Airlines

Nov 13

HRL10:44 amHarlingen Valley Intl

12h 11m

2 stops

BWI11:55 pmBaltimore/Washington

Nov 15

BWI11:52 amBaltimore/Washington

7h 19m

1 stop

HRL6:11 pmHarlingen Valley Intl

$440

American Airlines

Nov 13

HRL10:44 amHarlingen Valley Intl

12h 11m

2 stops

BWI11:55 pmBaltimore/Washington

Nov 15

BWI5:00 amBaltimore/Washington

9h 56m

2 stops

HRL1:56 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

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Wed 11/25

3:40 pm-12:40 am

1 stop8h 00m

Baltimore/Washington

Thu 12/3

4:15 pm-9:50 pm

1 stop6h 35m

$309

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Wed 11/25

3:40 pm-12:35 am

2 stops7h 55m

Baltimore/Washington

Thu 12/3

4:15 pm-9:50 pm

1 stop6h 35m

$314

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Wed 11/25

3:40 pm-12:55 am

2 stops8h 15m

Baltimore/Washington

Thu 12/3

2:35 pm-9:50 pm

2 stops8h 15m

$319

Quickest round-trip

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Thu 10/29

7:10 am-1:40 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Fri 10/30

10:58 am-4:01 pm

1 stop6h 03m

$339

HarlingenWashington, D.C.

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

HRLIAD

Harlingen Valley Intl

Thu 10/29

5:25 pm-12:37 am

1 stop6h 12m

Washington, D.C. Dulles Intl

Fri 10/30

2:38 pm-7:47 pm

1 stop6h 09m

$339

HarlingenWashington, D.C.

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

HRLIAD

Harlingen Valley Intl

Wed 9/30

2:00 pm-10:30 pm

1 stop7h 30m

Washington, D.C. Dulles Intl

Mon 10/5

3:02 pm-7:44 pm

1 stop5h 42m

$340

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Thu 10/29

5:30 am-2:35 pm

2 stops8h 05m

Washington, D.C. Reagan-National

Fri 10/30

6:55 pm-11:40 pm

1 stop5h 45m

$374

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Wed 9/30

5:28 pm-11:59 pm

1 stop5h 31m

Washington, D.C. Reagan-National

Mon 10/5

5:00 pm-10:50 pm

1 stop6h 50m

$384

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Fri 11/13

10:44 am-11:55 pm

2 stops12h 11m

Baltimore/Washington

Sun 11/15

11:52 am-6:11 pm

1 stop7h 19m

$440

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Fri 11/13

10:44 am-11:55 pm

2 stops12h 11m

Baltimore/Washington

Sun 11/15

5:00 am-1:56 pm

2 stops9h 56m

$447

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

Airlines

Layovers

Other information

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

American Airlines, Southwest, and United Airlines 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 according to our data. United Airlines is the first choice among our users, with 56% 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.

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	$170
Fastest flight time	4h 45m
Direct flights	None

The best one-way flight to Washington, D.C. from Harlingen in the past 72 hours is $170. The best round-trip flight deal from Harlingen to Washington, D.C. found on momondo in the last 72 hours is $309.

The fastest flight from Harlingen to Washington, D.C. takes 4h 45m

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 4h 45m.
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 September 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
United Airlines	PriceFrom $250	Free Cancellation	Rating 7.4 10,213 reviews		Search United Airlines flights
Southwest	PriceFrom $290	Free Cancellation	Rating 8.0 4,190 reviews		Search Southwest flights

Alexandria

National Harbor

Arlington

Gettysburg

Fredericksburg

Laurel

Waldorf

Woodbridge

Gaithersburg

Linthicum Heights

Rockville

Silver Spring

Towson

Fairfax

Springfield

Colonial Beach

Edgewood

Glen Burnie

Bethesda

College Park

Why use momondo?

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.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Harlingen to Washington, D.C. from $170

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 12/4. 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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United Airlines flights from Harlingen to Washington, D.C.

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

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

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

momondo Fare Finder

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 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 and Washington, D.C.?

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

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

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

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

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

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.

Popular cities in the United States

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According to popular flight searches on momondo this year

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