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Harlingen

$145+ Cheap flights from Washington, D.C. (WAS) to Harlingen (HRL)

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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HRL
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Harlingen

Cheapest flights from Washington, D.C. to Harlingen
Explore the most affordable flight options available from Washington, D.C. to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.

This American Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 5/267:10 pm
BWI
-
HRL
1 stop6h 04m
American Airlines
Sat 5/305:18 pm
HRL
-
BWI
1 stop6h 00m
American Airlines
Deal found 5/11$294
This Southwest deal was found by Cheapflights users on 5/15. 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 6/3010:15 am
BWI
-
HRL
1 stop11h 35m
Southwest
Tue 7/75:00 pm
HRL
-
BWI
1 stop6h 15m
Southwest
Deal found 5/15$313
This Southwest deal was found by Cheapflights users on 5/15. 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 7/110:00 am
BWI
-
HRL
2 stops7h 15m
Southwest
Tue 7/75:00 pm
HRL
-
BWI
1 stop6h 15m
Southwest
Deal found 5/15$332
This Southwest deal was found by Cheapflights users on 5/13. 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 6/138:10 am
BWI
-
HRL
1 stop6h 55m
Southwest
Sun 6/146:40 pm
HRL
-
BWI
1 stop4h 55m
Southwest
Deal found 5/13$337
This Southwest deal was found by Cheapflights users on 5/13. 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 6/56:50 am
BWI
-
HRL
1 stop6h 35m
Southwest
Sun 6/73:40 pm
HRL
-
BWI
1 stop8h 05m
Southwest
Deal found 5/13$373
This United Airlines deal was found by Cheapflights users on 5/11. 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 11/1012:25 pm
BWI
-
HRL
1 stop8h 07m
United Airlines
Thu 11/195:10 am
HRL
-
BWI
1 stop5h 10m
United Airlines
Deal found 5/11$377
This United Airlines deal was found by Cheapflights users on 5/12. 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 9/110:58 am
DCA
-
HRL
1 stop6h 01m
United Airlines
Wed 9/21:59 pm
HRL
-
DCA
1 stop6h 06m
United Airlines
Deal found 5/12$379
This United Airlines deal was found by Cheapflights users on 5/12. 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 9/298:31 am
IAD
-
HRL
1 stop5h 52m
United Airlines
Wed 9/301:59 pm
HRL
-
IAD
1 stop7h 30m
United Airlines
Deal found 5/12$379
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 6/2412:59 pm
DCA
-
HRL
1 stop7h 50m
United Airlines
Wed 7/15:10 am
HRL
-
DCA
1 stop5h 46m
United Airlines
Deal found 5/15$391
This United Airlines deal was found by Cheapflights users on 5/11. 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 5/2912:59 pm
DCA
-
HRL
1 stop7h 50m
United Airlines
Wed 6/105:20 pm
HRL
-
DCA
1 stop5h 39m
United Airlines
Deal found 5/11$399
This Southwest deal was found by Cheapflights users on 5/15. 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 12/216:00 am
DCA
-
HRL
2 stops10h 05m
Southwest
Wed 12/305:45 am
HRL
-
DCA
2 stops8h 55m
Southwest
Deal found 5/15$409
This Southwest deal was found by Cheapflights users on 5/12. 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 10/236:10 am
DCA
-
HRL
1 stop6h 05m
Southwest
Sun 10/255:30 am
HRL
-
DCA
2 stops7h 35m
Southwest
Deal found 5/12$424

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Harlingen (HRL). 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 May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$294
(American Airlines)

One-way from

$145
(Southwest)
Provider with most accurate pricing for Washington, D.C. (WAS)-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Harlingen Valley Intl flights.
Search Deals
From Washington, D.C. (WAS) to Harlingen Valley Intl
Search Deals
One-way flight from Washington, D.C. (WAS) to Harlingen Valley Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Harlingen 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 May 16, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 6/30

10:15 am-8:50 pm

1 stop11h 35m

Harlingen Valley Intl

Tue 7/7

5:00 pm-12:15 am

1 stop6h 15m

$313

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 7/1

10:00 am-4:15 pm

2 stops7h 15m

Harlingen Valley Intl

Tue 7/7

5:00 pm-12:15 am

1 stop6h 15m

$332

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 6/13

8:10 am-2:05 pm

1 stop6h 55m

Harlingen Valley Intl

Sun 6/14

6:40 pm-12:35 am

1 stop4h 55m

$337

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 5/26

1:55 pm-12:14 am

2 stops11h 19m

Harlingen Valley Intl

Sat 5/30

5:18 pm-12:18 am

1 stop6h 00m

$367

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 6/5

6:50 am-11:00 am

1 stop5h 10m

Harlingen Valley Intl

Sun 6/7

6:30 am-5:05 pm

2 stops9h 35m

$378

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 9/1

10:58 am-3:59 pm

1 stop6h 01m

Harlingen Valley Intl

Wed 9/2

1:59 pm-10:13 pm

1 stop7h 14m

$379

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Tue 9/29

3:02 pm-9:52 pm

1 stop7h 50m

Harlingen Valley Intl

Wed 9/30

1:59 pm-10:30 pm

1 stop7h 31m

$379

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 6/6

7:15 am-3:35 pm

1 stop9h 20m

Harlingen Valley Intl

Sun 6/7

6:30 am-5:05 pm

2 stops9h 35m

$384

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 6/24

12:59 pm-7:49 pm

1 stop7h 50m

Harlingen Valley Intl

Wed 7/1

5:10 am-11:56 am

1 stop5h 46m

$391

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 5/26

3:10 pm-10:00 pm

2 stops7h 50m

Harlingen Valley Intl

Sat 5/30

6:05 am-4:35 pm

2 stops9h 30m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 44 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. to Harlingen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to Harlingen in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-Harlingen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-Harlingen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Harlingen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Harlingen 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 Washington, D.C.-Harlingen 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 Washington, D.C. to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Washington, D.C. 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 Washington, D.C. to Harlingen
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Harlingen

Get insights into the airlines that provide service to Harlingen. 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 Harlingen. Reviews last updated May 16, 2026.
Peruse reviews from past customers who have flown with Southwest from Washington, D.C. to Harlingen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

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
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

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 Washington, D.C. to Harlingen. 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 into for flights to Harlingen from Washington, D.C.?

    Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Harlingen. 1 airline have flights to Valley Intl from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Harlingen Valley Intl should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. per day.

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

    For as low as $379, Southwest can have you in Harlingen from Washington, D.C. in 6h 01m. The distance from Washington, D.C. to Harlingen is about 1477 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Washington, D.C. Dulles Intl - Harlingen Valley Intl or Washington, D.C. Reagan-National - Harlingen Valley Intl, Baltimore/Washington - Harlingen Valley Intl is the most popular route from Washington, D.C. to Harlingen.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Harlingen 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Washington, D.C. to Harlingen

Discover the top airline that operate flights from Washington, D.C. to Harlingen. 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 May 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$266Average$343FlexibilityNo cancel feeOn-time63%

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