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Harlingen

$158+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HRL
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
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 July 2, 2026.

This Delta deal was found by Cheapflights users on 6/29. 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.
Sun 11/227:40 am
DCA
-
HRL
1 stop6h 51m
Delta
Fri 11/272:00 pm
HRL
-
DCA
1 stop8h 29m
Delta
Deal found 6/29$329
This Delta deal was found by Cheapflights users on 6/29. 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.
Sun 11/227:30 am
IAD
-
HRL
1 stop7h 01m
Delta
Fri 11/272:00 pm
HRL
-
IAD
1 stop8h 33m
Delta
Deal found 6/29$329
This Southwest deal was found by Cheapflights users on 6/27. 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.
Wed 11/256:20 am
BWI
-
HRL
1 stop11h 45m
Southwest
Tue 12/14:25 pm
HRL
-
BWI
1 stop5h 25m
Southwest
Deal found 6/27$349
This Southwest deal was found by Cheapflights users on 6/29. 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.
Fri 9/44:30 pm
BWI
-
HRL
2 stops7h 05m
Southwest
Mon 9/76:20 am
HRL
-
BWI
1 stop5h 45m
Southwest
Deal found 6/29$354
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:04 pm
BWI
-
HRL
1 stop5h 35m
United Airlines
Wed 9/165:05 am
HRL
-
BWI
1 stop5h 40m
United Airlines
Deal found 6/29$387
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/223:04 pm
BWI
-
HRL
1 stop7h 48m
United Airlines
Tue 9/297:15 am
HRL
-
BWI
1 stop8h 12m
United Airlines
Deal found 6/30$389
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:10 am
BWI
-
HRL
2 stops8h 49m
United Airlines
Wed 9/95:05 am
HRL
-
BWI
1 stop5h 40m
United Airlines
Deal found 6/29$392
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:55 pm
BWI
-
HRL
1 stop7h 59m
American Airlines
Mon 8/313:17 pm
HRL
-
BWI
1 stop7h 24m
American Airlines
Deal found 6/28$402
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/176:30 am
IAD
-
HRL
1 stop7h 54m
United Airlines
Thu 8/205:18 pm
HRL
-
IAD
1 stop6h 12m
United Airlines
Deal found 7/1$403
This Southwest deal was found by Cheapflights users on 6/29. 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 12/216:00 am
DCA
-
HRL
1 stop12h 05m
Southwest
Wed 12/305:45 am
HRL
-
DCA
1 stop5h 15m
Southwest
Deal found 6/29$404
This United Airlines deal was found by Cheapflights users on 6/30. 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 9/2210:25 am
BWI
-
HRL
2 stops10h 14m
United Airlines
Mon 9/285:05 am
HRL
-
BWI
1 stop5h 51m
United Airlines
Deal found 6/30$407
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:04 pm
BWI
-
HRL
1 stop7h 48m
United Airlines
Wed 9/27:15 am
HRL
-
BWI
1 stop8h 13m
United Airlines
Deal found 6/27$413

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 July 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(Delta)

One-way from

$158
(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 July 2, 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

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sun 11/22

7:40 am-1:31 pm

1 stop6h 51m

Harlingen Valley Intl

Fri 11/27

2:00 pm-11:29 pm

1 stop8h 29m

$329

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 11/25

6:20 am-5:05 pm

1 stop11h 45m

Harlingen Valley Intl

Tue 12/1

4:25 pm-10:50 pm

1 stop5h 25m

$349

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Fri 9/4

4:30 pm-10:35 pm

2 stops7h 05m

Harlingen Valley Intl

Mon 9/7

6:20 am-1:05 pm

1 stop5h 45m

$354

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 9/23

3:04 pm-9:52 pm

1 stop7h 48m

Harlingen Valley Intl

Tue 9/29

7:15 am-4:27 pm

1 stop8h 12m

$389

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Wed 9/2

6:05 am-3:59 pm

2 stops10h 54m

Harlingen Valley Intl

Tue 9/8

5:05 am-11:45 am

1 stop5h 40m

$392

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 9/1

8:10 am-3:59 pm

2 stops8h 49m

Harlingen Valley Intl

Tue 9/8

5:05 am-11:45 am

1 stop5h 40m

$392

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 9/22

10:25 am-7:39 pm

2 stops10h 14m

Harlingen Valley Intl

Tue 9/29

7:15 am-4:27 pm

1 stop8h 12m

$394

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Thu 8/27

3:55 pm-10:54 pm

1 stop7h 59m

Harlingen Valley Intl

Mon 8/31

3:17 pm-11:41 pm

1 stop7h 24m

$402

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 9/22

1:05 pm-7:39 pm

1 stop7h 34m

Harlingen Valley Intl

Mon 9/28

5:05 am-11:56 am

1 stop5h 51m

$402

BaltimoreHarlingen

BWI - HRL

BWIHRL

Baltimore/Washington

Tue 9/1

3:04 pm-9:52 pm

1 stop7h 48m

Harlingen Valley Intl

Wed 9/2

7:15 am-4:28 pm

1 stop8h 13m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/27

Showing 1-10 of 40 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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 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 July 2, 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
7.9
Good
4,249 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
7.9
Good
4,249 reviews
Southwest
7.9
Good
4,249 reviews

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

7.9

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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?

    For as low as $419, Delta can have you in Harlingen from Washington, D.C. in 6h 04m. 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 is the cheapest airline to fly from Washington, D.C. to Harlingen round-trip?

    According to our current data, United Airlines ($236), offers the cheapest pricing from Washington, D.C. to Harlingen.

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

    While some choose either Washington, D.C. Reagan-National - Harlingen Valley Intl or Baltimore/Washington - Harlingen Valley Intl, Washington, D.C. Dulles Intl - 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 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 July 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$236Average$270FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$266Average$357FlexibilityNo cancel feeOn-time63%

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