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Cheap flights from Harlingen, Texas to Washington, D.C. from $135

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:02 am - 5:52 pm
HRL
-
BWI
10h 50m2 stops
American Airlines Logo
3:22 pm - 10:52 pm
BWI
-
HRL
8h 30m1 stop
$256American Airlines
Tue, Feb 10 - Wed, Feb 18
American Airlines Logo
6:02 am - 5:16 pm
HRL
-
IAD
10h 14m2 stops
American Airlines Logo
5:32 pm - 10:52 pm
IAD
-
HRL
6h 20m1 stop
$256American Airlines
Tue, Feb 10 - Wed, Feb 18
American Airlines Logo
6:02 am - 2:49 pm
HRL
-
BWI
7h 47m1 stop
American Airlines Logo
3:22 pm - 10:52 pm
BWI
-
HRL
8h 30m1 stop
$257American Airlines
Tue, Feb 10 - Wed, Feb 18
American Airlines Logo
6:02 am - 5:52 pm
HRL
-
BWI
10h 50m2 stops
American Airlines Logo
1:00 pm - 10:52 pm
BWI
-
HRL
10h 52m2 stops
$261American Airlines
Tue, Feb 10 - Wed, Feb 18
American Airlines Logo
6:02 am - 5:16 pm
HRL
-
IAD
10h 14m2 stops
American Airlines Logo
11:22 am - 10:52 pm
IAD
-
HRL
12h 30m2 stops
$261American Airlines
Tue, Feb 10 - Wed, Feb 18
American Airlines Logo
3:22 pm - 11:10 pm
HRL
-
BWI
6h 48m1 stop
American Airlines Logo
3:22 pm - 10:52 pm
BWI
-
HRL
8h 30m1 stop
$264American Airlines
Tue, Feb 10 - Wed, Feb 18
United Airlines Logo
12:10 pm - 8:49 pm
HRL
-
IAD
7h 39m1 stop
United Airlines Logo
6:01 am - 11:24 am
IAD
-
HRL
6h 23m1 stop
$290United Airlines
Wed, Feb 11 - Sun, Feb 22
United Airlines Logo
5:20 pm - 11:50 pm
HRL
-
DCA
5h 30m1 stop
United Airlines Logo
8:10 am - 4:04 pm
DCA
-
HRL
8h 54m1 stop
$331United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
5:00 am - 4:58 pm
HRL
-
BWI
10h 58m2 stops
United Airlines Logo
6:15 am - 7:36 pm
BWI
-
HRL
14h 21m2 stops
$337United Airlines
Fri, Dec 26 - Tue, Dec 30
Delta Logo
3:36 pm - 11:55 pm
HRL
-
IAD
7h 19m1 stop
Delta Logo
7:00 am - 2:39 pm
IAD
-
HRL
8h 39m1 stop
$479Delta
Fri, Feb 27 - Sat, Feb 28

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
Feb 11
HRL12:10 pmHarlingen Valley Intl
7h 39m
1 stop
IAD8:49 pmWashington, D.C. Dulles Intl
Feb 22
IAD6:01 amWashington, D.C. Dulles Intl
6h 23m
1 stop
HRL11:24 amHarlingen Valley Intl
$290
Find similar
United Airlines
Feb 14
HRL5:20 pmHarlingen Valley Intl
5h 30m
1 stop
DCA11:50 pmWashington, D.C. Reagan-National
Feb 18
DCA8:10 amWashington, D.C. Reagan-National
8h 54m
1 stop
HRL4:04 pmHarlingen Valley Intl
$331
Find similar
United Airlines
Dec 26
HRL5:00 amHarlingen Valley Intl
10h 58m
2 stops
BWI4:58 pmBaltimore/Washington
Dec 30
BWI6:15 amBaltimore/Washington
14h 21m
2 stops
HRL7:36 pmHarlingen Valley Intl
$337
Find similar

Delta flights from Harlingen, Texas to Washington, D.C.

Our best Delta deals on Harlingen, Texas to Washington, D.C. flight tickets
Delta
Feb 27
HRL3:36 pmHarlingen Valley Intl
7h 19m
1 stop
IAD11:55 pmWashington, D.C. Dulles Intl
Feb 28
IAD7:00 amWashington, D.C. Dulles Intl
8h 39m
1 stop
HRL2:39 pmHarlingen Valley Intl
$479
Find similar
Delta
Feb 27
HRL3:36 pmHarlingen Valley Intl
7h 19m
1 stop
IAD11:55 pmWashington, D.C. Dulles Intl
Feb 28
IAD7:00 amWashington, D.C. Dulles Intl
8h 39m
1 stop
HRL2:39 pmHarlingen Valley Intl
$503
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Harlingen, Texas to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 11, 2025.
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

Tue 2/10

6:02 am-5:52 pm

2 stops10h 50m

Baltimore/Washington

Wed 2/18

3:22 pm-10:52 pm

1 stop8h 30m

$256

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Tue 2/10

6:02 am-5:16 pm

2 stops10h 14m

Washington, D.C. Dulles Intl

Wed 2/18

5:32 pm-10:52 pm

1 stop6h 20m

$256

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Tue 2/10

6:02 am-2:49 pm

1 stop7h 47m

Baltimore/Washington

Wed 2/18

3:22 pm-10:52 pm

1 stop8h 30m

$257

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Tue 2/10

6:02 am-5:52 pm

2 stops10h 50m

Baltimore/Washington

Wed 2/18

1:00 pm-10:52 pm

2 stops10h 52m

$261

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Tue 2/10

6:02 am-5:16 pm

2 stops10h 14m

Washington, D.C. Dulles Intl

Wed 2/18

11:22 am-10:52 pm

2 stops12h 30m

$261

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Tue 2/10

3:22 pm-11:10 pm

1 stop6h 48m

Baltimore/Washington

Wed 2/18

3:22 pm-10:52 pm

1 stop8h 30m

$264

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Wed 2/11

12:10 pm-8:49 pm

1 stop7h 39m

Washington, D.C. Dulles Intl

Sun 2/22

6:01 am-11:24 am

1 stop6h 23m

$290

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 2/14

5:20 pm-11:50 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Wed 2/18

8:10 am-4:04 pm

1 stop8h 54m

$331

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 12/26

5:00 am-4:58 pm

2 stops10h 58m

Baltimore/Washington

Tue 12/30

6:15 am-7:36 pm

2 stops14h 21m

$337

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 2/27

3:36 pm-11:55 pm

1 stop7h 19m

Washington, D.C. Dulles Intl

Sat 2/28

7:00 am-2:39 pm

1 stop8h 39m

$479

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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

On average, the least expensive day to fly to Washington, D.C. from Harlingen, Texas is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $353. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Harlingen, Texas to Washington, D.C. for around $417.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the morning is the cheapest time of day to fly from Harlingen, Texas to Washington, D.C. when you can find flight prices for as low as $381. Flying to Washington, D.C. in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $407. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You could potentially save up to 5% 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 28m

Direct flights

None
The fastest flight from Harlingen, Texas to Washington, D.C. takes 5h 28m
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 28m.

  • 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.?

  • 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.?

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
SouthwestPriceFrom $155Free CancellationRating
7.9
4,252 reviews
Search Southwest flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Springfield

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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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.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport