HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harlingen

$245+ Cheap flights from Reagan-National (DCA) to Harlingen, TX (HRL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HRL
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
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

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 August 7, 2025.

Round-trip from

$245
(American Airlines)

Popular in

April

Cheapest in

February

Average price

$442
From Washington, D.C. Reagan-National to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Reagan-National to Harlingen

Cheapest flights from Reagan-National to Harlingen
Explore the most affordable flight options available from Reagan-National to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This American Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 8/226:45 amDCA - HRL
1 stop8h 30mAmerican Airlines
Tue 8/266:30 pmHRL - DCA
1 stop5h 39mAmerican Airlines
Deal found 8/7$245
This American Airlines deal was found by Cheapflights users on 8/5. 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 9/255:00 amDCA - HRL
1 stop5h 41mAmerican Airlines
Sun 9/286:19 pmHRL - DCA
1 stop5h 36mAmerican Airlines
Deal found 8/5$276
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/58:20 amDCA - HRL
1 stop8h 42mUnited Airlines
Mon 9/85:20 pmHRL - DCA
1 stop5h 34mUnited Airlines
Deal found 8/7$295
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/212:59 pmDCA - HRL
1 stop7h 53mUnited Airlines
Sun 8/245:00 amHRL - DCA
1 stop5h 36mUnited Airlines
Deal found 8/6$317
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Fri 8/2210:20 amDCA - HRL
1 stop8h 40mAmerican Airlines
Mon 8/256:30 pmHRL - DCA
1 stop5h 46mAmerican Airlines
Deal found 8/7$324
This American Airlines deal was found by Cheapflights users on 8/7. 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 8/2310:55 amDCA - HRL
2 stops8h 05mAmerican Airlines
Mon 8/256:30 pmHRL - DCA
1 stop5h 46mAmerican Airlines
Deal found 8/7$329
This Southwest deal was found by Cheapflights users on 8/7. 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 8/221:30 pmDCA - HRL
1 stop5h 35mSouthwest
Mon 8/251:40 pmHRL - DCA
2 stops7h 55mSouthwest
Deal found 8/7$336
This Southwest deal was found by Cheapflights users on 8/5. 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.
Thu 9/251:30 pmDCA - HRL
1 stop5h 35mSouthwest
Sun 9/286:00 amHRL - DCA
2 stops8h 10mSouthwest
Deal found 8/5$370
This Southwest deal was found by Cheapflights users on 8/7. 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 8/232:30 pmDCA - HRL
2 stops7h 55mSouthwest
Mon 8/251:40 pmHRL - DCA
2 stops7h 55mSouthwest
Deal found 8/7$372

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 August 7, 2025.
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

Fri 8/22

6:45 am-2:15 pm

1 stop8h 30m

Harlingen Valley Intl

Tue 8/26

6:30 pm-1:09 am

1 stop5h 39m

$245

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 9/25

5:00 am-9:41 am

1 stop5h 41m

Harlingen Valley Intl

Sun 9/28

6:19 pm-12:55 am

1 stop5h 36m

$276

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 9/5

8:20 am-4:02 pm

1 stop8h 42m

Harlingen Valley Intl

Mon 9/8

5:20 pm-11:54 pm

1 stop5h 34m

$295

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 8/21

2:59 pm-9:52 pm

1 stop7h 53m

Harlingen Valley Intl

Sun 8/24

5:00 am-11:36 am

1 stop5h 36m

$317

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 8/22

10:20 am-6:00 pm

1 stop8h 40m

Harlingen Valley Intl

Mon 8/25

6:30 pm-1:16 am

1 stop5h 46m

$324

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 8/23

10:55 am-6:00 pm

2 stops8h 05m

Harlingen Valley Intl

Mon 8/25

6:30 pm-1:16 am

1 stop5h 46m

$329

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Fri 8/22

1:30 pm-6:05 pm

1 stop5h 35m

Harlingen Valley Intl

Mon 8/25

1:40 pm-10:35 pm

2 stops7h 55m

$336

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 9/25

1:30 pm-6:05 pm

1 stop5h 35m

Harlingen Valley Intl

Sun 9/28

6:00 am-3:10 pm

2 stops8h 10m

$370

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sat 8/23

2:30 pm-9:25 pm

2 stops7h 55m

Harlingen Valley Intl

Mon 8/25

1:40 pm-10:35 pm

2 stops7h 55m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/7

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 $267). Flying from Washington, D.C. Reagan-National Airport to Harlingen, Texas in June is currently the most expensive (average of $381). 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.

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 August 7, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Washington, D.C. Reagan-National Airport to Harlingen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,247 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,247 reviews
Southwest
8.0
Very good
4,247 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,247 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,247 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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.

  • What is the cheapest airline to fly from Washington, D.C. Reagan-National Airport to Harlingen, Texas round-trip?

    According to our current data, American Airlines ($245), offers the cheapest pricing from Washington, D.C. Reagan-National Airport to Harlingen, Texas.

  • 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 $267). Flying from Washington, D.C. Reagan-National Airport to Harlingen, Texas in June is currently the most expensive (average of $381). 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
Reagan-National to Dallas/Fort Worth flights
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Hobby flights
Reagan-National to Hobby flights
Dulles Intl to George Bush Intcntl flights
Baltimore to George Bush Intcntl flights
Baltimore to Austin flights
Dulles Intl to Hobby flights
Reagan-National to Austin flights
Reagan-National to George Bush Intcntl flights
Dulles Intl to Austin flights
Dulles Intl to Love Field flights
Baltimore to Love Field flights
Reagan-National to Love Field flights
Dulles Intl to San Antonio flights
Baltimore to San Antonio flights
Reagan-National to San Antonio flights
Dulles Intl to McAllen flights
Dulles Intl to El Paso flights
Reagan-National to El Paso flights
Baltimore to El Paso flights
Dulles Intl to Lubbock flights
Reagan-National to McAllen flights
Dulles Intl to Corpus Christi flights
Baltimore to Brownsville flights
Baltimore to Corpus Christi flights
Dulles Intl to Brownsville flights
Dulles Intl to Amarillo flights
Baltimore to McAllen flights
Baltimore to Harlingen flights
Baltimore to Midland flights
Reagan-National to Amarillo flights
Dulles Intl to Midland flights
Dulles Intl to Harlingen flights
Reagan-National to Corpus Christi flights
Baltimore to Lubbock flights
Dulles Intl to Waco flights
Baltimore to Waco flights
Reagan-National to Midland flights
Reagan-National to Brownsville flights
Baltimore to Amarillo flights
Reagan-National to Lubbock flights
Reagan-National to Waco flights
Dulles Intl to Killeen flights
Baltimore to San Angelo flights
Dulles Intl to San Angelo flights
Reagan-National to San Angelo flights
Dulles Intl 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.