HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harlingen

$205+ Cheap flights from Reagan-National (DCA) 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HRL
Jan 31 — Feb 71
Sat 1/31
Sat 2/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Harlingen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Harlingen

Best flights from Reagan-National to Harlingen
Discover carefully curated flight deals from Reagan-National to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 1, 2026.

This United Airlines deal was found by Cheapflights users on 12/30. 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 1/132:45 pmDCA - HRL
1 stop6h 16mUnited Airlines
Sat 1/179:20 amHRL - DCA
1 stop5h 37mUnited Airlines
Deal found 12/30$304
This American Airlines deal was found by Cheapflights users on 12/30. 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 1/136:59 amDCA - HRL
2 stops8h 47mAmerican Airlines
Sat 1/176:02 amHRL - DCA
1 stop7h 55mAmerican Airlines
Deal found 12/30$309
This deal was found by Cheapflights users on 12/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:28 pmDCA - HRL
1 stop6h 31mUnited Airlines
Tue 3/35:20 pmHRL - DCA
1 stop5h 30mUnited Airlines
Deal found 12/31$331
This deal was found by Cheapflights users on 12/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:45 pmDCA - HRL
1 stop6h 13mUnited Airlines
Tue 3/39:20 amHRL - DCA
1 stop5h 35mUnited Airlines
Deal found 12/31$331
This United Airlines deal was found by Cheapflights users on 12/29. 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 1/202:45 pmDCA - HRL
1 stop6h 16mUnited Airlines
Sat 1/245:25 pmHRL - DCA
1 stop5h 34mUnited Airlines
Deal found 12/29$331
This deal was found by Cheapflights users on 12/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:45 pmDCA - HRL
1 stop6h 13mUnited Airlines
Mon 3/25:20 pmHRL - DCA
1 stop5h 30mUnited Airlines
Deal found 12/31$340
This deal was found by Cheapflights users on 12/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:28 pmDCA - HRL
1 stop6h 31mUnited Airlines
Mon 3/25:20 pmHRL - DCA
1 stop5h 30mUnited Airlines
Deal found 12/31$340
This deal was found by Cheapflights users on 12/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:00 amDCA - HRL
1 stop6h 24mUnited Airlines
Tue 3/39:20 amHRL - DCA
1 stop5h 35mUnited Airlines
Deal found 12/31$340
This deal was found by Cheapflights users on 12/31. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:28 pmDCA - HRL
1 stop6h 31mUnited Airlines
Sun 3/17:00 amHRL - DCA
1 stop5h 39mUnited Airlines
Deal found 12/31$410

Find flight deals from Reagan-National to Harlingen

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 January 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$304
(United Airlines)

One-way from

$205
(United Airlines)
Provider with most accurate pricing for Washington, D.C. Reagan-National-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Harlingen Valley Intl flights.
Search Deals
From Washington, D.C. Reagan-National to Harlingen Valley Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to Harlingen Valley Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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 January 1, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Harlingen that are best for you.

Fly from

Reagan-National

Fly to

Harlingen

Route

Depart

Return

Price

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 1/13

2:45 pm-8:01 pm

1 stop6h 16m

Harlingen Valley Intl

Sat 1/17

9:20 am-3:57 pm

1 stop5h 37m

$304

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 1/13

6:59 am-2:46 pm

2 stops8h 47m

Harlingen Valley Intl

Sat 1/17

6:02 am-2:57 pm

1 stop7h 55m

$309

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 2/24

4:28 pm-9:59 pm

1 stop6h 31m

Harlingen Valley Intl

Tue 3/3

5:20 pm-11:50 pm

1 stop5h 30m

$331

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 2/25

2:45 pm-7:58 pm

1 stop6h 13m

Harlingen Valley Intl

Tue 3/3

9:20 am-3:55 pm

1 stop5h 35m

$331

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 1/20

2:45 pm-8:01 pm

1 stop6h 16m

Harlingen Valley Intl

Sat 1/24

5:25 pm-11:59 pm

1 stop5h 34m

$331

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 2/25

2:45 pm-7:58 pm

1 stop6h 13m

Harlingen Valley Intl

Mon 3/2

5:20 pm-11:50 pm

1 stop5h 30m

$340

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 2/24

4:28 pm-9:59 pm

1 stop6h 31m

Harlingen Valley Intl

Mon 3/2

5:20 pm-11:50 pm

1 stop5h 30m

$340

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 2/26

6:00 am-11:24 am

1 stop6h 24m

Harlingen Valley Intl

Tue 3/3

9:20 am-3:55 pm

1 stop5h 35m

$340

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Tue 2/24

4:28 pm-9:59 pm

1 stop6h 31m

Harlingen Valley Intl

Sun 3/1

7:00 am-1:39 pm

1 stop5h 39m

$410

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 1/10

3:59 pm-9:59 pm

1 stop7h 00m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 17 results
1
2
  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-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. Reagan-National Airport-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Harlingen, Texas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-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. Reagan-National Airport-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 Reagan-National to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Reagan-National 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. Reagan-National Airport to Harlingen

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

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Harlingen, Texas (average of $236). Flying from Washington, D.C. Reagan-National Airport to Harlingen, Texas in July is currently the most expensive (average of $538). 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 Reagan-National 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. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Harlingen, you will be flying into Valley Intl. Harlingen Valley Intl (HRL) is just 3.7 mi from the center of the city. Valley Intl is the only Harlingen airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Harlingen Valley Intl from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Harlingen, Texas?

    Airlines like United Airlines and American Airlines fly from Washington, D.C. Reagan-National Airport to Harlingen, Texas in about 6h 16m. The time it takes to get you to your destination can typically vary by up to 2h 31m. There are 1477 mi between Washington, D.C. Reagan-National Airport and Harlingen, Texas. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Reagan-National to Harlingen that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Harlingen?

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

  • Can I find deals for business class flights from Reagan-National to Harlingen?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to Harlingen, Texas?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Harlingen, Texas (average of $236). Flying from Washington, D.C. Reagan-National Airport to Harlingen, Texas in July is currently the most expensive (average of $538). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Reagan-National to Hobby flights
Dulles Intl to Hobby flights
Baltimore to Hobby flights
Dulles Intl to George Bush Intcntl flights
Reagan-National to George Bush Intcntl flights
Dulles Intl to Austin flights
Baltimore to Austin flights
Baltimore to George Bush Intcntl flights
Reagan-National to Austin flights
Baltimore to Love Field flights
Baltimore to San Antonio flights
Dulles Intl to Love Field flights
Reagan-National to San Antonio flights
Reagan-National to Love Field flights
Dulles Intl to San Antonio flights
Dulles Intl to El Paso flights
Reagan-National to El Paso flights
Baltimore to El Paso flights
Dulles Intl to McAllen flights
Dulles Intl to Brownsville flights
Baltimore to McAllen flights
Dulles Intl to Lubbock flights
Reagan-National to Brownsville flights
Reagan-National to McAllen flights
Baltimore to Lubbock flights
Dulles Intl to Midland flights
Reagan-National to Corpus Christi flights
Baltimore to Brownsville flights
Dulles Intl to Abilene flights
Baltimore to Midland flights
Reagan-National to Lubbock flights
Dulles Intl to Corpus Christi flights
Baltimore to Killeen flights
Baltimore to Corpus Christi flights
Reagan-National to Midland flights
Dulles Intl to Killeen flights
Dulles Intl to Amarillo flights
Baltimore to Waco flights
Reagan-National to Amarillo flights
Dulles Intl to Waco flights
Reagan-National to Killeen flights
Baltimore to Abilene flights
Dulles Intl to Harlingen flights
Baltimore to Harlingen flights
Baltimore to Amarillo flights
Baltimore to Laredo flights
Reagan-National to Laredo flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.