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Washington, D.C.

$145+ Cheap flights from Harlingen, TX (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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — WAS
May 1 — May 81
Fri 5/1
Fri 5/8
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 April 1, 2026.

This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
HRL
-
BWI
1 stop8h 24m
United Airlines
Sat 4/188:10 am
BWI
-
HRL
1 stop8h 54m
United Airlines
Deal found 3/30$277
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:00 am
HRL
-
BWI
1 stop8h 00m
American Airlines
Tue 4/147:00 am
BWI
-
HRL
1 stop8h 17m
American Airlines
Deal found 3/30$307
This Southwest deal was found by Cheapflights users on 3/28. 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.
Sat 5/96:05 am
HRL
-
BWI
1 stop10h 20m
Southwest
Sat 5/304:15 pm
BWI
-
HRL
1 stop6h 20m
Southwest
Deal found 3/28$312
This Southwest deal was found by Cheapflights users on 3/31. 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 7/410:00 am
HRL
-
BWI
1 stop7h 05m
Southwest
Tue 7/147:00 am
BWI
-
HRL
2 stops7h 30m
Southwest
Deal found 3/31$314
This Southwest deal was found by Cheapflights users on 3/30. 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.
Fri 4/176:00 am
HRL
-
BWI
2 stops8h 40m
Southwest
Mon 4/205:00 pm
BWI
-
HRL
2 stops7h 00m
Southwest
Deal found 3/30$317
This Southwest deal was found by Cheapflights users on 3/31. 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 7/410:00 am
HRL
-
BWI
1 stop7h 05m
Southwest
Sat 7/1110:25 am
BWI
-
HRL
2 stops13h 15m
Southwest
Deal found 3/31$320
This Southwest deal was found by Cheapflights users on 3/31. 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 4/136:00 am
HRL
-
BWI
1 stop5h 05m
Southwest
Mon 4/274:35 pm
BWI
-
HRL
2 stops7h 25m
Southwest
Deal found 3/31$322
This Southwest deal was found by Cheapflights users on 3/30. 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.
Wed 5/206:20 am
HRL
-
BWI
2 stops8h 05m
Southwest
Mon 5/255:00 pm
BWI
-
HRL
2 stops7h 00m
Southwest
Deal found 3/30$323
This Delta deal was found by Cheapflights users on 3/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:02 pm
HRL
-
DCA
1 stop6h 41m
Delta
Mon 5/46:05 am
DCA
-
HRL
1 stop10h 00m
Delta
Deal found 3/30$334
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:47 pm
HRL
-
IAD
1 stop7h 39m
American Airlines
Mon 5/45:59 pm
IAD
-
HRL
1 stop5h 52m
American Airlines
Deal found 3/27$343
This United Airlines deal was found by Cheapflights users on 3/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:18 pm
HRL
-
IAD
1 stop5h 41m
United Airlines
Tue 4/286:00 am
IAD
-
HRL
1 stop6h 23m
United Airlines
Deal found 3/28$361
This Southwest deal was found by Cheapflights users on 3/31. 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 7/411:15 am
HRL
-
DCA
1 stop8h 40m
Southwest
Tue 7/146:05 am
DCA
-
HRL
1 stop7h 00m
Southwest
Deal found 3/31$364

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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(United Airlines)

One-way from

$145
(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 April 1, 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 7/4

10:00 am-6:05 pm

1 stop7h 05m

Baltimore/Washington

Thu 7/9

1:50 pm-9:40 pm

1 stop8h 50m

$282

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 7/4

10:00 am-6:05 pm

1 stop7h 05m

Baltimore/Washington

Tue 7/14

7:00 am-1:30 pm

2 stops7h 30m

$314

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 4/17

4:02 pm-11:26 pm

1 stop6h 24m

Baltimore/Washington

Mon 4/20

6:08 am-3:05 pm

1 stop9h 57m

$317

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Wed 5/20

7:10 am-5:15 pm

2 stops9h 05m

Baltimore/Washington

Tue 5/26

3:05 pm-10:00 pm

2 stops7h 55m

$317

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 4/27

4:02 pm-11:43 pm

1 stop6h 41m

Washington, D.C. Reagan-National

Mon 5/4

6:05 am-3:05 pm

1 stop10h 00m

$334

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Wed 4/29

4:02 pm-11:26 pm

1 stop6h 24m

Baltimore/Washington

Mon 5/4

6:08 am-3:05 pm

1 stop9h 57m

$337

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Sat 5/9

6:05 am-5:15 pm

2 stops10h 10m

Baltimore/Washington

Sat 5/30

1:55 pm-9:35 pm

2 stops8h 40m

$347

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Mon 4/13

6:55 am-3:55 pm

2 stops8h 00m

Baltimore/Washington

Thu 4/30

10:20 am-8:35 pm

1 stop11h 15m

$348

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Fri 5/15

5:00 pm-11:30 pm

1 stop5h 30m

Baltimore/Washington

Mon 5/18

5:00 pm-11:00 pm

2 stops7h 00m

$352
Quickest round-trip

HarlingenBaltimore

HRL - BWI

HRLBWI

Harlingen Valley Intl

Thu 4/16

6:00 am-12:05 pm

1 stop5h 05m

Baltimore/Washington

Mon 4/20

6:45 pm-11:00 pm

1 stop5h 15m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 33 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Harlingen, Texas-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, Texas-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harlingen, Texas-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, Texas-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.

What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. (average of $155). Flying from Harlingen, Texas to Washington, D.C. in December is currently the most expensive (average of $549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 April 1, 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
8.0
Very good
4,335 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,335 reviews
Southwest
8.0
Very good
4,335 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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, Texas to Washington, D.C.?

    Southwest, United Airlines, and Delta can get you from Harlingen, Texas to Washington, D.C. in just under 5h 41m. Your travel time can differ by up to 1h 24m. Airlines will cover a distance of 1462 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Harlingen, Texas to Washington, D.C. round-trip?

    United Airlines, at $250, was found to be the cheapest airline from Harlingen, Texas to Washington, D.C...

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

    When deciding which route to take from Harlingen, Texas to Washington, D.C. consider Harlingen Valley Intl - Baltimore/Washington, Harlingen Valley Intl - Washington, D.C. Dulles Intl 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.

  • What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. (average of $155). Flying from Harlingen, Texas to Washington, D.C. in December is currently the most expensive (average of $549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
Cordova
Manassas

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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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$155Average$378FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$250Average$367FlexibilityNo cancel feeOn-time69%

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