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Harlingen

$139+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HRL
May 1 — May 81
Fri 5/1
Fri 5/8
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 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.
Sat 4/256:00 am
IAD
-
HRL
1 stop6h 23m
United Airlines
Wed 4/295:18 pm
HRL
-
IAD
1 stop5h 41m
United Airlines
Deal found 3/30$271
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.
Mon 4/276:00 am
IAD
-
HRL
1 stop6h 23m
United Airlines
Sat 5/25:18 pm
HRL
-
IAD
1 stop5h 41m
United Airlines
Deal found 3/30$280
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.
Wed 4/2912:55 pm
IAD
-
HRL
1 stop7h 45m
United Airlines
Sat 5/25:18 pm
HRL
-
IAD
1 stop5h 41m
United Airlines
Deal found 3/30$287
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.
Tue 5/265:00 am
DCA
-
HRL
1 stop6h 13m
American Airlines
Tue 6/24:57 pm
HRL
-
DCA
1 stop6h 02m
American Airlines
Deal found 3/30$298
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.
Thu 5/282:53 pm
IAD
-
HRL
1 stop5h 56m
United Airlines
Mon 6/15:20 pm
HRL
-
IAD
1 stop6h 11m
United Airlines
Deal found 3/30$301
This Delta deal was found by Cheapflights users on 3/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:08 am
BWI
-
HRL
1 stop10h 00m
Delta
Fri 4/174:02 pm
HRL
-
BWI
1 stop6h 24m
Delta
Deal found 3/29$307
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.
Sat 4/259:19 am
IAD
-
HRL
2 stops11h 14m
American Airlines
Wed 4/292:47 pm
HRL
-
IAD
1 stop7h 39m
American Airlines
Deal found 3/30$309
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 5/15:00 pm
BWI
-
HRL
2 stops7h 00m
Southwest
Sun 5/36:35 pm
HRL
-
BWI
1 stop5h 10m
Southwest
Deal found 3/30$312
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.
Wed 4/297:00 am
IAD
-
HRL
1 stop8h 17m
American Airlines
Sat 5/210:47 am
HRL
-
IAD
2 stops12h 12m
American Airlines
Deal found 3/30$321
This Southwest deal was found by Cheapflights users on 3/29. 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 4/133:05 pm
BWI
-
HRL
1 stop6h 30m
Southwest
Fri 4/176:00 am
HRL
-
BWI
2 stops8h 40m
Southwest
Deal found 3/29$342
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:15 am
BWI
-
HRL
1 stop8h 40m
Southwest
Thu 4/165:00 pm
HRL
-
BWI
1 stop5h 30m
Southwest
Deal found 3/27$347
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.
Mon 4/277:00 am
IAD
-
HRL
1 stop8h 17m
American Airlines
Sat 5/210:47 am
HRL
-
IAD
2 stops12h 12m
American Airlines
Deal found 3/30$352

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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(United Airlines)

One-way from

$139
(Delta)
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 April 1, 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
Quickest round-trip

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 4/27

6:00 am-11:23 am

1 stop6h 23m

Harlingen Valley Intl

Sat 5/2

5:18 pm-11:59 pm

1 stop5h 41m

$280

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Wed 4/29

12:55 pm-7:40 pm

1 stop7h 45m

Harlingen Valley Intl

Tue 5/5

5:18 pm-11:59 pm

1 stop5h 41m

$287

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 5/26

5:00 am-10:13 am

1 stop6h 13m

Harlingen Valley Intl

Tue 6/2

4:57 pm-11:59 pm

1 stop6h 02m

$298

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 5/1

5:00 pm-11:00 pm

2 stops7h 00m

Harlingen Valley Intl

Sun 5/3

6:35 pm-12:45 am

1 stop5h 10m

$312

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Mon 4/13

3:05 pm-8:35 pm

1 stop6h 30m

Harlingen Valley Intl

Fri 4/17

6:00 am-3:40 pm

2 stops8h 40m

$342

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sun 4/12

6:15 am-1:55 pm

1 stop8h 40m

Harlingen Valley Intl

Thu 4/16

5:00 pm-11:30 pm

1 stop5h 30m

$347

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 5/2

12:40 pm-8:00 pm

1 stop8h 20m

Harlingen Valley Intl

Tue 5/5

7:00 am-1:35 pm

1 stop5h 35m

$361

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Sat 5/2

6:00 am-11:23 am

1 stop6h 23m

Harlingen Valley Intl

Tue 5/5

9:20 am-4:33 pm

1 stop6h 13m

$377

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Mon 4/13

7:40 am-3:08 pm

1 stop8h 28m

Harlingen Valley Intl

Fri 4/17

4:02 pm-11:43 pm

1 stop6h 41m

$379

Washington, D.C.Harlingen

IAD - HRL

IADHRL

Washington, D.C. Dulles Intl

Mon 4/13

6:00 am-3:08 pm

1 stop10h 08m

Harlingen Valley Intl

Fri 4/17

4:02 pm-11:32 pm

1 stop6h 30m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 25 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 April.
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, Texas 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, Texas flight deals on Cheapflights vs. FlightHub >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 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, 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, April is the cheapest month in which you can book a flight from Washington, D.C. to Harlingen, Texas (average of $228). 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.

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, Texas?

    Departing from Washington, D.C. to Harlingen, Texas will take you 6h 13m. 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 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, 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, April is the cheapest month in which you can book a flight from Washington, D.C. to Harlingen, Texas (average of $228). 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

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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$266Average$343FlexibilityNo cancel feeOn-time63%

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