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Washington, D.C.

$235+ Cheap flights from Harlingen (HRL) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — WAS
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
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Cheap flight deals from Harlingen to Washington, D.C.

Cheapest flights from Harlingen to Washington, D.C.
Explore the most affordable flight options available from Harlingen to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2026.

This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:00 am
HRL
-
BWI
1 stop5h 35m
Southwest
Sat 8/226:55 am
BWI
-
HRL
1 stop6h 05m
Southwest
Deal found 6/30$289
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:50 am
HRL
-
BWI
1 stop5h 20m
Southwest
Tue 8/257:45 am
BWI
-
HRL
1 stop6h 15m
Southwest
Deal found 7/1$319
This Southwest deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:25 pm
HRL
-
DCA
1 stop4h 55m
Southwest
Wed 8/1910:40 am
DCA
-
HRL
1 stop5h 10m
Southwest
Deal found 6/28$324
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:05 am
HRL
-
BWI
1 stop5h 05m
Southwest
Tue 8/45:40 pm
BWI
-
HRL
1 stop5h 05m
Southwest
Deal found 6/30$327
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:05 am
HRL
-
DCA
1 stop5h 41m
United Airlines
Mon 11/98:20 am
DCA
-
HRL
1 stop6h 04m
United Airlines
Deal found 7/3$329
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:13 pm
HRL
-
IAD
1 stop8h 08m
Delta
Mon 11/97:30 am
IAD
-
HRL
1 stop7h 01m
Delta
Deal found 7/3$329
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:00 am
HRL
-
DCA
1 stop11h 25m
Southwest
Sat 8/224:55 pm
DCA
-
HRL
1 stop5h 00m
Southwest
Deal found 6/30$334
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:40 am
HRL
-
BWI
2 stops9h 45m
Southwest
Mon 11/99:35 am
BWI
-
HRL
2 stops7h 30m
Southwest
Deal found 7/3$342
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/271:15 pm
HRL
-
BWI
1 stop5h 20m
Southwest
Mon 8/36:50 am
BWI
-
HRL
1 stop6h 35m
Southwest
Deal found 6/29$349
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:55 am
HRL
-
BWI
2 stops8h 20m
Southwest
Sat 8/158:15 am
BWI
-
HRL
2 stops8h 35m
Southwest
Deal found 6/29$367
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/271:15 pm
HRL
-
DCA
1 stop9h 40m
Southwest
Mon 8/36:10 pm
DCA
-
HRL
1 stop6h 35m
Southwest
Deal found 6/29$384
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/61:00 pm
HRL
-
DCA
2 stops6h 55m
Southwest
Mon 11/93:35 pm
DCA
-
HRL
2 stops8h 55m
Southwest
Deal found 7/3$397

Find flight deals from Harlingen to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(Southwest)

One-way from

$235
(United Airlines)
Provider with most accurate pricing for Harlingen Valley Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harlingen Valley Intl-Washington, D.C. (WAS) flights.
Search Deals
From Harlingen Valley Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from Harlingen Valley Intl to Washington, D.C. (WAS)
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen 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, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2026.
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 - BWI

HRLBWI

Harlingen Valley Intl

Sat 8/15

7:00 am-1:35 pm

1 stop5h 35m

Baltimore/Washington

Sat 8/22

2:20 pm-8:55 pm

2 stops7h 35m

$294

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Wed 8/12

4:25 pm-10:20 pm

1 stop4h 55m

Washington, D.C. Reagan-National

Wed 8/19

10:40 am-2:50 pm

1 stop5h 10m

$324

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 11/6

11:40 am-7:55 pm

1 stop7h 15m

Baltimore/Washington

Mon 11/9

11:10 am-4:05 pm

1 stop5h 55m

$332

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Tue 7/28

6:15 am-2:55 pm

2 stops7h 40m

Baltimore/Washington

Tue 8/4

9:30 am-2:50 pm

1 stop6h 20m

$332
Quickest round-trip

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 8/14

4:40 pm-10:40 pm

1 stop5h 00m

Baltimore/Washington

Sat 8/15

4:55 pm-8:55 pm

1 stop5h 00m

$332

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 11/6

2:13 pm-11:11 pm

2 stops7h 58m

Washington, D.C. Dulles Intl

Mon 11/9

7:30 am-1:31 pm

1 stop7h 01m

$334

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 8/15

7:00 am-7:25 pm

1 stop11h 25m

Washington, D.C. Reagan-National

Sat 8/22

4:55 pm-8:55 pm

1 stop5h 00m

$334

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 7/31

6:30 pm-12:40 am

1 stop5h 10m

Baltimore/Washington

Mon 8/3

6:50 am-11:00 am

1 stop5h 10m

$349

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Mon 7/27

5:15 am-2:05 pm

2 stops7h 50m

Baltimore/Washington

Mon 8/3

9:25 am-5:00 pm

2 stops8h 35m

$384

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 7/27

1:15 pm-10:45 pm

2 stops8h 30m

Washington, D.C. Reagan-National

Mon 8/3

4:10 pm-11:45 pm

2 stops8h 35m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 28 resultsSorted by cheapest first
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2
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  • Most accurate provider: When it comes to deals on Harlingen-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Harlingen with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Washington, D.C.
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated July 3, 2026.
Get a feel of what it's like to fly with Southwest from Harlingen to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Overall

7.9

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Scott,Feb 2026

HOU - FLL

Delayed by 45 minutes leaving Houston, making a 3.5 hour layover that much longer.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Harlingen to Washington, D.C.?

    Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Washington, D.C.. 2 airlines have flights from Valley Intl to Washington, D.C. on a regular basis. Booking flights from Harlingen Valley Intl to Washington, D.C. should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. per day.

  • How long is the flight from Harlingen to Washington, D.C.?

    For as low as $289, Southwest can have you in Washington, D.C. from Harlingen in 5h 35m. The distance between Harlingen and Washington, D.C. is about 1506 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Harlingen to Washington, D.C. round-trip?

    Our cheapest airline available from Harlingen to Washington, D.C. is United Airlines. Our recent data shows that you can find tickets from as low as $270 on this airline. An additional option worth looking into is Southwest, starting at $328.

  • What are the most popular routes from Harlingen to Washington, D.C.?

    When deciding which route to take from Harlingen to Washington, D.C. consider Harlingen Valley Intl - Washington, D.C. Dulles Intl, Harlingen Valley Intl - Baltimore/Washington or Harlingen Valley Intl - Washington, D.C. Reagan-National as they are the most popular.

  • Can I find deals for flights from Harlingen to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Harlingen to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Harlingen to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Washington, D.C..

  • Can I find deals for business class flights from Harlingen to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Harlingen to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Falls Church
Fredericksburg
Hanover
Manassas
Silver Spring
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Harlingen to Washington, D.C.

Discover the top 2 airlines that operate flights from Harlingen to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$155Average$388FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$270Average$386FlexibilityNo cancel feeOn-time69%

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