In terms of precipitation, rainfall in Harlingen, Texas ranges from 1.1 - 5.2 inches per month. September is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Harlingen, Texas when rainfall is around 1.1 in.

If weather is an important factor for your trip to Harlingen, Texas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

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

When flying from Washington, D.C. Reagan-National Airport to Harlingen, Texas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

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.

$135+ Flights from Washington, D.C. Reagan-National Airport to Harlingen, TX

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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 2, 2026.

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

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

Wed 2/412:40 pmDCA - HRL

1 stop8h 21mUnited Airlines

Sun 2/812:10 pmHRL - DCA

1 stop5h 31mUnited Airlines

Deal found 1/1

$340

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

Tue 1/202:45 pmDCA - HRL

1 stop8h 14mUnited Airlines

Sat 1/249:20 amHRL - DCA

1 stop5h 37mUnited Airlines

Deal found 12/31

$340

Wed 2/42:45 pmDCA - HRL

1 stop6h 16mUnited Airlines

Fri 2/67:00 amHRL - DCA

1 stop7h 57mUnited Airlines

Deal found 1/1

$340

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

Fri 2/66:00 amDCA - HRL

1 stop6h 26mUnited Airlines

Sat 2/712:10 pmHRL - DCA

1 stop7h 46mUnited Airlines

Deal found 1/1

$340

Thu 2/52:45 pmDCA - HRL

1 stop8h 14mUnited Airlines

Fri 2/69:20 amHRL - DCA

1 stop5h 37mUnited Airlines

Deal found 1/1

$349

Last-minute flights from Reagan-National to Harlingen
Discover last-minute flight deals from Reagan-National to Harlingen. Data last updated January 2, 2026 and is based on user searches.

Sun 1/48:35 amDCA - HRL

1 stop6h 45mDelta

Thu 1/83:39 pmHRL - DCA

1 stop6h 44mDelta

Deal found 1/1

$439

Mon 1/58:15 amDCA - HRL

1 stop8h 51mUnited Airlines

Thu 1/87:00 amHRL - DCA

1 stop7h 57mUnited Airlines

Deal found 1/1

$519

Sat 1/1011:00 amDCA - HRL

1 stop6h 06mUnited Airlines

Tue 1/139:20 amHRL - DCA

1 stop8h 21mUnited Airlines

Deal found 12/31

$409

Sat 1/102:10 pmDCA - HRL

1 stop5h 50mSouthwest

Tue 1/1312:15 pmHRL - DCA

2 stops7h 20mSouthwest

Deal found 12/31

$414

Sat 1/109:45 amDCA - HRL

2 stops9h 29mAmerican Airlines

Tue 1/136:02 amHRL - DCA

2 stops7h 22mAmerican Airlines

Deal found 12/31

$419

Sat 1/103:24 pmDCA - HRL

2 stops8h 57mAmerican Airlines

Wed 1/146:02 amHRL - DCA

2 stops7h 22mAmerican Airlines

Deal found 1/1

$431

Fri 1/163:59 pmDCA - HRL

1 stop8h 22mAmerican Airlines

Tue 1/203:22 pmHRL - DCA

1 stop6h 38mAmerican Airlines

Deal found 1/1

$304

Tue 1/202:45 pmDCA - HRL

1 stop8h 14mUnited Airlines

Sat 1/249:20 amHRL - DCA

1 stop5h 37mUnited Airlines

Deal found 12/30

$331

One-way flights from Reagan-National to Harlingen
Search for one-way flight options from Reagan-National to Harlingen. Find affordable one-way fares based on user searches. Data last updated January 2, 2026.

Sun 2/18:15 amDCA - HRL

1 stop8h 51mUnited Airlines

Deal found 1/1

$135

Sun 2/17:00 amDCA - HRL

2 stops8h 46mAmerican Airlines

Deal found 1/1

$155

Sat 1/103:59 pmDCA - HRL

1 stop7h 00mUnited Airlines

Deal found 12/31

$205

Sat 1/103:24 pmDCA - HRL

2 stops8h 57mAmerican Airlines

Deal found 12/31

$210

Mon 3/306:00 amDCA - HRL

1 stop6h 23mUnited Airlines

Deal found 12/31

$245

Thu 3/267:30 amDCA - HRL

1 stop7h 44mAmerican Airlines

Deal found 12/31

$264

Sat 3/284:59 pmDCA - HRL

1 stop6h 54mAmerican Airlines

Deal found 12/31

$310

Sun 3/297:30 amDCA - HRL

1 stop7h 44mAmerican Airlines

Deal found 12/31

$347

Fri 3/2711:36 amDCA - HRL

1 stop9h 00mAmerican Airlines

Deal found 12/31

$400

Find flight deals from Reagan-National to Harlingen

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 1 star
Round-trip from	$304 (American Airlines)
One-way from	$135 (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

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

Fly to

Route

Depart

Return

Price

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

Wed 2/4

12:40 pm-8:01 pm

1 stop8h 21m

Harlingen Valley Intl

Sun 2/8

12:10 pm-6:41 pm

1 stop5h 31m

$340

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 1/20

2:45 pm-9:59 pm

1 stop8h 14m

Harlingen Valley Intl

Sat 1/24

9:20 am-3:57 pm

1 stop5h 37m

$340

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Wed 2/4

2:45 pm-8:01 pm

1 stop6h 16m

Harlingen Valley Intl

Fri 2/6

7:00 am-3:57 pm

1 stop7h 57m

$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

Fri 2/6

6:00 am-11:26 am

1 stop6h 26m

Harlingen Valley Intl

Sat 2/7

12:10 pm-8:56 pm

1 stop7h 46m

$340

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Thu 2/5

2:45 pm-9:59 pm

1 stop8h 14m

Harlingen Valley Intl

Fri 2/6

9:20 am-3:57 pm

1 stop5h 37m

$349

Washington, D.C.Harlingen

DCA - HRL

DCAHRL

Washington, D.C. Reagan-National

Sun 2/1

8:15 am-4:06 pm

1 stop8h 51m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/1

Showing 1-10 of 19 results

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

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 fly from Washington, D.C. Reagan-National Airport to Harlingen, Texas in about 6h 31m. The time it takes to get you to your destination can typically vary by up to . There are 1477 mi between Washington, D.C. Reagan-National Airport and 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 $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

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.

$135+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Harlingen with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Reagan-National to Harlingen

Best flights from Reagan-National to HarlingenDiscover 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 2, 2026.

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 2, 2026.

Find flight deals from Reagan-National to Harlingen

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Harlingen that are best for you.

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.

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?

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?

How long is the flight 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?

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

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

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

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.

100% Free

Book with Flexibility

Travel Smart

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 2, 2026.