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Harlingen

$126+ Cheap flights from Washington, D.C. (WAS) to Harlingen, TX (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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HRL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This Southwest deal was found by Cheapflights users on 12/16. 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 12/216:15 amBWI - HRL
1 stop6h 05mSouthwest
Sat 1/103:45 pmHRL - BWI
1 stop5h 00mSouthwest
Deal found 12/16$483
This Southwest deal was found by Cheapflights users on 12/15. 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.
Sat 12/206:55 pmBWI - HRL
1 stop6h 00mSouthwest
Sat 1/103:45 pmHRL - BWI
1 stop5h 00mSouthwest
Deal found 12/15$503
This Southwest deal was found by Cheapflights users on 12/15. 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.
Fri 12/192:25 pmBWI - HRL
2 stops9h 25mSouthwest
Sat 1/103:45 pmHRL - BWI
1 stop5h 00mSouthwest
Deal found 12/15$508
This Southwest deal was found by Cheapflights users on 12/16. 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 12/226:15 pmBWI - HRL
1 stop6h 40mSouthwest
Tue 1/612:15 pmHRL - BWI
1 stop6h 15mSouthwest
Deal found 12/16$514
This Southwest deal was found by Cheapflights users on 12/16. 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 12/196:15 amBWI - HRL
1 stop6h 05mSouthwest
Mon 12/225:45 pmHRL - BWI
1 stop6h 10mSouthwest
Deal found 12/16$599
This Southwest deal was found by Cheapflights users on 12/16. 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 12/266:00 pmBWI - HRL
2 stops6h 55mSouthwest
Mon 12/295:45 pmHRL - BWI
1 stop6h 10mSouthwest
Deal found 12/16$609
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Sun 12/216:30 amDCA - HRL
1 stop8h 48mAmerican Airlines
Sat 1/1011:06 amHRL - DCA
1 stop7h 38mAmerican Airlines
Deal found 12/16$610
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/186:08 amIAD - HRL
1 stop6h 05mUnited Airlines
Wed 12/315:00 amHRL - IAD
1 stop5h 28mUnited Airlines
Deal found 12/17$614
This Southwest deal was found by Cheapflights users on 12/16. 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 12/213:45 pmDCA - HRL
2 stops8h 05mSouthwest
Sat 1/106:00 amHRL - DCA
1 stop6h 35mSouthwest
Deal found 12/16$630
This Southwest deal was found by Cheapflights users on 12/15. 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.
Sat 12/202:45 pmDCA - HRL
2 stops10h 10mSouthwest
Sat 1/106:00 amHRL - DCA
1 stop6h 35mSouthwest
Deal found 12/15$650
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Thu 12/186:08 amIAD - HRL
1 stop6h 05mUnited Airlines
Tue 12/305:20 pmHRL - IAD
2 stops13h 01mUnited Airlines
Deal found 12/17$687
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/2410:15 pmIAD - HRL
1 stop24h 44mUnited Airlines
Wed 12/315:00 amHRL - IAD
1 stop5h 28mUnited Airlines
Deal found 12/17$714

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$290
(United Airlines)

One-way from

$126
(United Airlines)
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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Harlingen that are best for you.

Fly from

Washington, D.C.

Fly to

Harlingen

Route

Depart

Return

Price

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 2/28

3:59 pm-9:59 pm

1 stop7h 00m

Harlingen Valley Intl

Mon 3/2

5:20 pm-11:50 pm

1 stop5h 30m

$290

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Fri 3/6

6:00 am-2:13 pm

1 stop9h 13m

Harlingen Valley Intl

Wed 3/11

2:45 pm-10:53 pm

1 stop7h 08m

$299

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 3/6

5:45 pm-12:05 am

1 stop7h 20m

Harlingen Valley Intl

Wed 3/11

7:00 am-3:30 pm

1 stop7h 30m

$299

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 2/28

3:55 pm-9:30 pm

1 stop6h 35m

Harlingen Valley Intl

Mon 3/2

6:35 am-3:45 pm

1 stop8h 10m

$313

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 1/24

6:00 am-11:26 am

1 stop6h 26m

Harlingen Valley Intl

Wed 1/28

7:00 am-1:43 pm

1 stop5h 43m

$331

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Sat 1/24

8:15 am-4:06 pm

1 stop8h 51m

Harlingen Valley Intl

Wed 1/28

12:10 pm-8:49 pm

1 stop7h 39m

$331

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 2/27

6:15 am-5:25 pm

1 stop12h 10m

Harlingen Valley Intl

Mon 3/2

6:35 am-3:45 pm

1 stop8h 10m

$334

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 2/27

6:00 am-11:24 am

1 stop6h 24m

Harlingen Valley Intl

Mon 3/2

5:20 pm-11:50 pm

1 stop5h 30m

$350

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 2/28

2:55 pm-10:50 pm

2 stops8h 55m

Harlingen Valley Intl

Mon 3/2

11:15 am-10:40 pm

1 stop10h 25m

$362

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 2/27

1:10 pm-7:15 pm

1 stop7h 05m

Harlingen Valley Intl

Mon 3/2

9:45 am-9:45 pm

2 stops11h 00m

$385

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 23 results
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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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust 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, Texas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C.-Harlingen, Texas flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Harlingen, Texas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Harlingen, Texas flights, Cheapflights users trust eDreams the most. eDreams 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, Texas 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

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

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Harlingen, Texas (average of $210). Flying from Washington, D.C. to Harlingen, Texas in November is currently the most expensive (average of $408). 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.

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

Find hourly flight availability from Washington, D.C. to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

One of the essential ways to save on airfare from Washington, D.C. to Harlingen, Texas is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 21% on airfare.

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 December 18, 2025.
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
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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. 2 airlines 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, Texas?

    Departing from Washington, D.C. to Harlingen, Texas will take you 7h. The distance from Washington, D.C. to Harlingen, Texas 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, Texas?

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

  • 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.

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

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Harlingen, Texas (average of $210). Flying from Washington, D.C. to Harlingen, Texas in November is currently the most expensive (average of $408). 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

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Alternative routes for Washington, D.C. to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Washington, D.C. to Harlingen

Discover the top 2 airlines 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$210Average$378FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$228Average$341FlexibilityNo cancel feeOn-time63%

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