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

For as low as $322, Southwest can have you in Washington, D.C. from Harlingen in 7h 10m. 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.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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.

What is the cheapest time of day to fly from HRL to WAS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Harlingen to Washington, D.C. as you normally would.

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.

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.

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.

$240+ Cheap Flights from Harlingen to Washington, D.C.

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

Cheapest

Best

Last-minute

One-way

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 August 23, 2026.

Tue 9/227:25 am -

1 stop7h 00m

Thu 9/2410:10 am -

1 stop8h 05m

Deal found 8/21

$317

Thu 11/197:25 am -

1 stop7h 40m

Mon 11/236:45 am -

1 stop5h 20m

Deal found 8/21

$332

Fri 11/132:30 pm -

1 stop8h 09m

Sun 11/156:05 am -

1 stop8h 27m

Deal found 8/19

$339

Fri 11/132:30 pm -

1 stop7h 50m

Sun 11/157:30 am -

1 stop7h 02m

Deal found 8/19

$339

Sat 10/1710:55 am -

1 stop7h 35m

Tue 10/276:35 am -

1 stop6h 50m

Deal found 8/18

$351

Fri 11/132:18 pm -

1 stop8h 05m

Sun 11/157:01 am -

1 stop7h 27m

Deal found 8/22

$353

Fri 12/257:25 am -

1 stop10h 55m

Wed 12/308:15 am -

1 stop7h 45m

Deal found 8/20

$354

Tue 9/157:25 am -

1 stop7h 00m

Sat 9/262:00 pm -

1 stop8h 00m

Deal found 8/18

$355

Sat 10/102:00 pm -

1 stop7h 14m

Fri 10/1612:57 pm -

1 stop7h 47m

Deal found 8/18

$356

Fri 10/22:00 pm -

1 stop7h 14m

Sun 10/48:20 am -

1 stop6h 03m

Deal found 8/22

$357

Fri 12/252:05 pm -

1 stop5h 46m

Wed 12/302:35 pm -

1 stop8h 24m

Deal found 8/20

$361

Fri 12/252:47 pm -

1 stop8h 12m

Wed 12/305:00 am -

1 stop5h 59m

Deal found 8/20

$362

Best flights from Harlingen to Washington, D.C.
Discover carefully curated flight deals from Harlingen to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Tue 9/227:25 am -

2 stops7h 10m

Thu 9/247:10 am -

1 stop5h 10m

Deal found 8/21

$322

Fri 11/132:30 pm -

1 stop8h 09m

Sun 11/156:05 am -

1 stop8h 27m

Deal found 8/19

$339

Sat 10/102:00 pm -

1 stop7h 14m

Fri 10/1612:57 pm -

1 stop7h 47m

Deal found 8/18

$356

Fri 11/132:30 pm -

1 stop7h 50m

Sun 11/157:30 am -

1 stop7h 02m

Deal found 8/21

$339

Wed 9/303:25 pm -

1 stop6h 50m

Tue 10/63:10 pm -

2 stops7h 45m

Deal found 8/22

$344

Sat 10/1710:55 am -

1 stop7h 35m

Tue 10/276:35 am -

1 stop6h 50m

Deal found 8/18

$351

Fri 11/132:18 pm -

1 stop8h 05m

Sun 11/157:01 am -

1 stop7h 27m

Deal found 8/22

$353

Tue 2/29:20 am -

1 stop5h 46m

Sat 2/61:00 pm -

1 stop7h 32m

Deal found 8/20

$429

Tue 9/157:25 am -

1 stop7h 00m

Sat 9/262:00 pm -

1 stop8h 00m

Deal found 8/18

$355

Thu 10/82:13 pm -

1 stop8h 31m

Sat 10/106:05 am -

1 stop8h 18m

Deal found 8/20

$374

Fri 10/25:18 pm -

1 stop6h 12m

Sun 10/46:15 am -

1 stop8h 08m

Deal found 8/22

$429

Fri 12/256:20 am -

2 stops7h 20m

Wed 12/309:35 am -

2 stops8h 35m

Deal found 8/20

$359

Fri 10/25:30 am -

1 stop5h 30m

Sun 10/46:10 am -

2 stops6h 50m

Deal found 8/22

$379

Thu 9/245:30 am -

1 stop11h 40m

Mon 9/286:40 pm -

1 stop5h 00m

Deal found 8/20

$379

Thu 9/245:05 am -

1 stop5h 23m

Mon 9/286:15 am -

1 stop8h 08m

Deal found 8/20

$506

Last-minute flights from Harlingen to Washington, D.C.
Discover last-minute flight deals from Harlingen to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

Sat 9/57:00 am -

1 stop5h 35m

Wed 9/912:50 pm -

1 stop8h 25m

Deal found 8/21

$390

Tue 9/157:25 am -

1 stop7h 00m

Sat 9/262:00 pm -

1 stop8h 00m

Deal found 8/18

$355

Wed 9/164:25 pm -

1 stop4h 55m

Sun 9/206:00 am -

1 stop12h 00m

Deal found 8/23

$414

Wed 9/161:59 pm -

1 stop7h 46m

Sun 9/206:30 am -

1 stop7h 54m

Deal found 8/23

$429

Fri 9/1810:55 am -

1 stop8h 00m

Fri 9/253:25 pm -

1 stop6h 10m

Deal found 8/19

$405

Sun 9/205:18 pm -

1 stop6h 12m

Sun 9/276:15 am -

1 stop8h 08m

Deal found 8/21

$339

Tue 9/227:25 am -

1 stop7h 00m

Thu 9/2410:10 am -

1 stop8h 05m

Deal found 8/21

$317

Tue 9/224:25 pm -

1 stop4h 55m

Thu 9/246:40 pm -

1 stop5h 00m

Deal found 8/21

$339

Thu 9/2411:55 am -

2 stops7h 20m

Mon 9/289:40 am -

1 stop7h 25m

Deal found 8/20

$364

Thu 9/2411:55 am -

2 stops8h 00m

Mon 9/286:40 pm -

1 stop5h 00m

Deal found 8/20

$379

Tue 9/296:35 am -

2 stops8h 15m

Tue 10/64:00 pm -

2 stops6h 55m

Deal found 8/22

$349

Wed 9/305:05 am -

1 stop5h 23m

Tue 10/68:30 am -

1 stop8h 29m

Deal found 8/22

$400

One-way flights from Harlingen to Washington, D.C.
Search for one-way flight options from Harlingen to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

Mon 8/317:15 am -

1 stop5h 44m

Deal found 8/22

$240

Fri 8/285:18 pm -

1 stop6h 12m

Deal found 8/20

$240

Mon 8/3111:55 am -

2 stops8h 00m

Deal found 8/22

$245

Mon 8/3110:55 am -

1 stop8h 00m

Deal found 8/22

$260

Fri 8/285:18 pm -

1 stop5h 41m

Deal found 8/20

$285

Mon 8/311:59 pm -

1 stop5h 57m

Deal found 8/20

$285

Mon 8/317:15 am -

1 stop8h 13m

Deal found 8/20

$310

Fri 8/2810:34 am -

2 stops11h 21m

Deal found 8/20

$355

Mon 8/3110:34 am -

2 stops9h 22m

Deal found 8/22

$415

Fri 8/287:15 am -

1 stop8h 13m

Deal found 8/20

$420

Mon 8/313:17 pm -

1 stop7h 24m

Deal found 8/22

$690

Mon 8/315:54 am -

2 stops9h 04m

Deal found 8/23

$715

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$317 (Southwest)
One-way from	$240 (United Airlines)

Provider with most accurate pricing for Harlingen Valley Intl-Washington, D.C. (WAS) flight deals.

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Provider most trusted by Cheapflights users for Harlingen Valley Intl-Washington, D.C. (WAS) flights.

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From Harlingen Valley Intl to Washington, D.C. (WAS)

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One-way flight from Harlingen Valley Intl to Washington, D.C. (WAS)

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Cheapflights 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

Quickest round-trip

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Tue 9/22

7:25 am-3:35 pm

2 stops7h 10m

Baltimore/Washington

Thu 9/24

7:10 am-11:20 am

1 stop5h 10m

$322

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Fri 11/13

2:30 pm-11:39 pm

1 stop8h 09m

Washington, D.C. Reagan-National

Sun 11/15

6:05 am-1:32 pm

1 stop8h 27m

$339

HarlingenWashington, D.C.

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

HRLIAD

Harlingen Valley Intl

Fri 11/13

2:30 pm-11:20 pm

1 stop7h 50m

Washington, D.C. Dulles Intl

Sun 11/15

7:30 am-1:32 pm

1 stop7h 02m

$339

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Wed 9/30

3:25 pm-11:15 pm

1 stop6h 50m

Washington, D.C. Reagan-National

Tue 10/6

3:10 pm-9:55 pm

2 stops7h 45m

$344

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Sat 10/17

10:55 am-7:30 pm

1 stop7h 35m

Baltimore/Washington

Tue 10/27

6:35 am-12:25 pm

1 stop6h 50m

$351

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Fri 11/13

2:18 pm-11:23 pm

1 stop8h 05m

Baltimore/Washington

Sun 11/15

7:01 am-1:28 pm

1 stop7h 27m

$353

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Tue 9/15

7:25 am-3:25 pm

1 stop7h 00m

Baltimore/Washington

Sat 9/26

2:00 pm-9:00 pm

1 stop8h 00m

$355

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Sat 10/10

2:00 pm-10:14 pm

1 stop7h 14m

Washington, D.C. Reagan-National

Fri 10/16

12:57 pm-7:44 pm

1 stop7h 47m

$356

HarlingenBaltimore

HRL Harlingen Valley Intl - BWI Baltimore/Washington

HRLBWI

Harlingen Valley Intl

Fri 12/25

6:20 am-2:40 pm

2 stops7h 20m

Baltimore/Washington

Wed 12/30

9:35 am-5:10 pm

2 stops8h 35m

$359

HarlingenWashington, D.C.

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

HRLDCA

Harlingen Valley Intl

Thu 10/8

2:13 pm-11:44 pm

1 stop8h 31m

Washington, D.C. Reagan-National

Sat 10/10

6:05 am-1:23 pm

1 stop8h 18m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/22

Showing 1-10 of 25 resultsSorted by cheapest first

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.

HRL-WAS

HRL-DCA

HRL-IAD

HRL-BWI

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.

HRL-WAS

HRL-DCA

HRL-IAD

HRL-BWI

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington, D.C.

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

8.0

Very good

4,214 reviews

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

8.0

Very good

4,214 reviews

Southwest

8.0

Very good

4,214 reviews

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

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 $322, Southwest can have you in Washington, D.C. from Harlingen in 7h 10m. 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.

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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$270	Average$386	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$290	Average$403	FlexibilityNo cancel fee	On-time63%

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$240+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.

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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 August 23, 2026.

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 August 23, 2026.

Best flights from Harlingen to Washington, D.C.Discover carefully curated flight deals from Harlingen to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Discover carefully curated flight deals from Harlingen to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Last-minute flights from Harlingen to Washington, D.C.Discover last-minute flight deals from Harlingen to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

Discover last-minute flight deals from Harlingen to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

One-way flights from Harlingen to Washington, D.C.Search for one-way flight options from Harlingen to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

Search for one-way flight options from Harlingen to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.

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

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.

Cheapflights Insights

Reviews of airlines servicing Washington, D.C.

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.

Related info for your journey

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

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

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

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

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

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

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

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Harlingen and Washington, D.C. flights

Browse other Harlingen and Washington, D.C. flight options. Last updated on August 23, 2026.

Other flights from Harlingen

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

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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 August 23, 2026.

Best flights from Harlingen to Washington, D.C.
Discover carefully curated flight deals from Harlingen to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 23, 2026.

Last-minute flights from Harlingen to Washington, D.C.
Discover last-minute flight deals from Harlingen to Washington, D.C.. Data last updated August 23, 2026 and is based on user searches.

One-way flights from Harlingen to Washington, D.C.
Search for one-way flight options from Harlingen to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 23, 2026.