In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

When flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport, 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 Harlingen, Texas-Washington, D.C. Reagan-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harlingen, Texas-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Harlingen, Texas-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Harlingen, Texas-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Harlingen to Washington, D.C. Reagan-National?

Most people fly from Harlingen Valley Intl (HRL) if they book a flight from Harlingen to Washington, D.C. Reagan-National. On average, Valley Intl has 0 outbound flights to Washington, D.C. Reagan-National per day from 2 airlines. Harlingen Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Harlingen to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$331+ Flights from Harlingen, TX to Washington, D.C. Reagan-National Airport

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1. Tell us where you want to go

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Cheap flight deals from Harlingen to Reagan-National

Cheapest flights from Harlingen to Reagan-National
Explore the most affordable flight options available from Harlingen to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Wed 12/315:00 amHRL - DCA

1 stop5h 29mUnited Airlines

Sun 1/46:00 amDCA - HRL

1 stop8h 26mUnited Airlines

Deal found 12/15

$494

Sat 12/205:34 amHRL - DCA

1 stop7h 42mAmerican Airlines

Mon 12/227:43 amDCA - HRL

1 stop7h 35mAmerican Airlines

Deal found 12/15

$665

Best flights from Harlingen to Reagan-National
Discover carefully curated flight deals from Harlingen to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Sat 2/145:20 pmHRL - DCA

1 stop5h 30mUnited Airlines

Wed 2/1812:47 pmDCA - HRL

1 stop8h 11mUnited Airlines

Deal found 12/15

$331

Mon 2/95:40 amHRL - DCA

2 stops8h 05mSouthwest

Thu 2/1210:40 amDCA - HRL

1 stop7h 45mSouthwest

Deal found 12/17

$395

Wed 12/315:00 amHRL - DCA

1 stop5h 29mUnited Airlines

Sun 1/46:00 amDCA - HRL

1 stop8h 26mUnited Airlines

Deal found 12/15

$494

Tue 1/67:00 amHRL - DCA

2 stops12h 59mUnited Airlines

Wed 1/74:28 pmDCA - HRL

1 stop6h 31mUnited Airlines

Deal found 12/17

$1,026

Last-minute flights from Harlingen to Reagan-National
Discover last-minute flight deals from Harlingen to Reagan-National. Data last updated December 18, 2025 and is based on user searches.

Sat 12/205:34 amHRL - DCA

1 stop7h 42mAmerican Airlines

Mon 12/227:43 amDCA - HRL

1 stop7h 35mAmerican Airlines

Deal found 12/15

$665

Wed 12/315:00 amHRL - DCA

1 stop5h 29mUnited Airlines

Sun 1/46:00 amDCA - HRL

1 stop8h 26mUnited Airlines

Deal found 12/15

$494

Tue 1/65:25 pmHRL - DCA

1 stop5h 34mUnited Airlines

Wed 1/76:00 amDCA - HRL

1 stop6h 26mUnited Airlines

Deal found 12/17

$405

Find flight deals from Harlingen to Reagan-National

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$331 (United Airlines)

Provider with most accurate pricing for Harlingen Valley Intl-Washington, D.C. Reagan-National flight deals.

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Provider most trusted by Cheapflights users for Harlingen Valley Intl-Washington, D.C. Reagan-National flights.

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From Harlingen Valley Intl to Washington, D.C. Reagan-National

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Sat 2/14

5:20 pm-11:50 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Wed 2/18

12:47 pm-7:58 pm

1 stop8h 11m

$331

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 2/9

5:40 am-2:45 pm

2 stops8h 05m

Washington, D.C. Reagan-National

Thu 2/12

10:40 am-5:25 pm

1 stop7h 45m

$395

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Wed 12/31

5:00 am-11:29 am

1 stop5h 29m

Washington, D.C. Reagan-National

Sun 1/4

6:00 am-1:26 pm

1 stop8h 26m

$494

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Tue 1/6

7:00 am-8:59 pm

2 stops12h 59m

Washington, D.C. Reagan-National

Wed 1/7

4:28 pm-9:59 pm

1 stop6h 31m

$1,026

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Compare providers for flights from Harlingen to Reagan-National

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Reagan-National in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*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 Harlingen, Texas-Washington, D.C. Reagan-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harlingen, Texas-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Harlingen, Texas-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Harlingen, Texas-Washington, D.C. Reagan-National Airport 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 Harlingen to Reagan-National

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

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

Currently, September is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. Reagan-National Airport (average of $253). Flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport in December is currently the most expensive (average of $549). 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 Reagan-National

Get a feel of what it's like to fly with Southwest and United Airlines from Harlingen to Washington, D.C. Reagan-National Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,093 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

What airport do you fly from for flights from Harlingen to Washington, D.C. Reagan-National?
Most people fly from Harlingen Valley Intl (HRL) if they book a flight from Harlingen to Washington, D.C. Reagan-National. On average, Valley Intl has 0 outbound flights to Washington, D.C. Reagan-National per day from 2 airlines. Harlingen Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.
How long is the flight from Harlingen, Texas to Washington, D.C. Reagan-National Airport?
United Airlines and Southwest can get you from Harlingen, Texas to Washington, D.C. Reagan-National Airport in just under 5h 30m. Your travel time can differ by up to 2h 35m. The distance between Harlingen, Texas and Washington, D.C. Reagan-National Airport 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 cheapest airlines flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport round-trip?
According to our current data, United Airlines ($270), and Southwest ($333) offers the cheapest pricing from Harlingen, Texas to Washington, D.C. Reagan-National Airport.
Can I find deals for flights from Harlingen to Reagan-National that include hotel bookings?
Yes. In addition to deals on Harlingen to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harlingen to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Reagan-National.
Can I find deals for business class flights from Harlingen to Reagan-National?
Yes. Cheapflights offers flight deals from Harlingen to Reagan-National 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 Harlingen, Texas to Washington, D.C. Reagan-National Airport?
Currently, September is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. Reagan-National Airport (average of $253). Flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport in December is currently the most expensive (average of $549). 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

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Linthicum Heights

Rockville

Laurel

Towson

Manassas

National Harbor

Bowie

Largo

McLean

Clinton

Cordova

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Harlingen to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$270	Average$378	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$333	Average$448	FlexibilityNo cancel fee	On-time63%

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$331+ Cheap flights from Harlingen, TX (HRL) to Reagan-National (DCA)

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harlingen to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Harlingen to Reagan-National

Cheapest flights from Harlingen to Reagan-NationalExplore the most affordable flight options available from Harlingen to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Explore the most affordable flight options available from Harlingen to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

Find flight deals from Harlingen to Reagan-National

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

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

Compare providers for flights from Harlingen to Reagan-National

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 Harlingen to Reagan-National in December.

Best time to book a flight from Harlingen to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Harlingen with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Washington, D.C. Reagan-National Airport

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

Reviews of airlines servicing Reagan-National

Get a feel of what it's like to fly with Southwest and United Airlines from Harlingen to Washington, D.C. Reagan-National Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Reagan-National. 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 from for flights from Harlingen to Washington, D.C. Reagan-National?

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

What are the cheapest airlines flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport round-trip?

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

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

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

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

Traveling to a place near Washington, D.C. Reagan-National Airport?

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 Harlingen to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Harlingen to Reagan-National

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Cheapest flights from Harlingen to Reagan-National
Explore the most affordable flight options available from Harlingen to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.