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

United Airlines and Southwest can get you from Harlingen to Washington, D.C. Reagan-National Airport in just under 5h 32m. Your travel time can differ by up to 2h 33m. The distance from Harlingen to Washington, D.C. Reagan-National Airport is about 1477 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Flying on United Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $250. Another option worth looking into is Southwest, starting at $373 round trip. United Airlines is 42% cheaper than the average price of flights available within the next 90 days to this destination.

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 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-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-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-Washington, D.C. Reagan-National Airport 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 Harlingen-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.

$180+ Cheap Flights from Harlingen to Washington, D.C. Reagan-National Airport

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Cheap flight deals from Harlingen to Reagan-National

Cheapest

Best

Last-minute

One-way

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 October 30, 2026.

Thu 11/261:59 pm -

1 stop5h 59m

Wed 12/210:54 am -

1 stop5h 56m

Deal found 10/26

$297

Wed 11/255:05 am -

1 stop5h 42m

Wed 12/24:30 pm -

1 stop6h 29m

Deal found 10/25

$359

Wed 11/252:18 pm -

1 stop6h 42m

Wed 12/26:00 am -

2 stops8h 37m

Deal found 10/25

$364

Fri 12/182:05 pm -

1 stop7h 09m

Mon 1/42:28 pm -

1 stop6h 11m

Deal found 10/26

$377

Wed 12/232:47 pm -

1 stop8h 10m

Tue 12/295:00 am -

1 stop6h 04m

Deal found 10/27

$378

Thu 11/267:10 am -

1 stop6h 45m

Wed 12/28:25 am -

2 stops8h 25m

Deal found 10/26

$383

Thu 11/267:10 am -

1 stop5h 30m

Tue 12/16:05 am -

1 stop6h 09m

Deal found 10/26

$385

Tue 11/105:25 pm -

1 stop5h 32m

Sat 11/1412:50 pm -

1 stop7h 57m

Deal found 10/26

$397

Tue 11/245:05 am -

1 stop5h 42m

Tue 12/16:05 am -

1 stop6h 09m

Deal found 10/25

$413

Wed 11/185:05 am -

1 stop5h 42m

Mon 11/234:34 pm -

1 stop7h 14m

Deal found 10/25

$416

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 October 30, 2026.

Tue 11/105:25 pm -

1 stop5h 32m

Sat 11/1412:50 pm -

1 stop7h 57m

Deal found 10/26

$397

Fri 12/1811:50 am -

2 stops8h 05m

Mon 1/43:35 pm -

2 stops9h 00m

Deal found 10/26

$438

Tue 11/245:05 am -

1 stop5h 42m

Tue 12/16:05 am -

1 stop6h 09m

Deal found 10/25

$413

Thu 11/1211:40 am -

1 stop5h 35m

Mon 11/162:40 pm -

2 stops8h 10m

Deal found 10/29

$454

Mon 11/235:25 pm -

1 stop5h 32m

Fri 11/2710:58 am -

1 stop6h 03m

Deal found 10/25

$429

Thu 11/125:25 pm -

1 stop5h 32m

Mon 11/164:34 pm -

1 stop7h 14m

Deal found 10/29

$429

Tue 1/267:00 am -

1 stop5h 45m

Wed 1/278:00 am -

1 stop6h 30m

Deal found 10/29

$447

Last-minute flights from Harlingen to Reagan-National
Discover last-minute flight deals from Harlingen to Reagan-National. Data last updated October 30, 2026 and is based on user searches.

Tue 11/105:25 pm -

1 stop5h 32m

Sat 11/1412:50 pm -

1 stop7h 57m

Deal found 10/26

$397

Thu 11/125:25 pm -

1 stop5h 32m

Mon 11/164:34 pm -

1 stop7h 14m

Deal found 10/29

$429

Wed 11/185:05 am -

1 stop5h 42m

Mon 11/234:34 pm -

1 stop7h 14m

Deal found 10/25

$416

Tue 11/245:05 am -

1 stop5h 42m

Tue 12/16:05 am -

1 stop6h 09m

Deal found 10/25

$413

Wed 11/255:05 am -

1 stop5h 42m

Wed 12/24:30 pm -

1 stop6h 29m

Deal found 10/25

$359

Wed 11/252:18 pm -

1 stop6h 42m

Wed 12/26:00 am -

2 stops8h 37m

Deal found 10/25

$364

Thu 11/261:59 pm -

1 stop5h 59m

Wed 12/210:54 am -

1 stop5h 56m

Deal found 10/26

$297

Thu 11/267:10 am -

1 stop6h 45m

Wed 12/28:25 am -

2 stops8h 25m

Deal found 10/26

$383

Thu 11/267:10 am -

1 stop5h 30m

Tue 12/16:05 am -

1 stop6h 09m

Deal found 10/26

$385

One-way flights from Harlingen to Reagan-National
Search for one-way flight options from Harlingen to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

Fri 12/252:05 pm -

1 stop5h 54m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/28

$180

Thu 12/32:00 pm -

1 stop7h 09m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/29

$204

Fri 12/2512:50 pm -

2 stops8h 05m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/28

$220

Fri 12/44:39 pm -

1 stop6h 18m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/29

$224

Mon 1/44:45 pm -

1 stop6h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$249

Wed 11/111:59 pm -

1 stop5h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/28

$254

Sat 12/265:35 am -

2 stops8h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/29

$279

Fri 1/16:20 am -

1 stop4h 40m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$309

Sun 1/33:40 pm -

1 stop7h 15m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/27

$330

Sat 1/25:35 am -

1 stop4h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 10/29

$339

Find flight deals from Harlingen to Reagan-National

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$297 (United Airlines)
One-way from	$180 (United Airlines)
Popular in	May
Cheapest in	January
Average price	$505

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

Search Deals

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

Search Deals

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

Search Deals

One-way flight from Harlingen Valley Intl to Washington, D.C. Reagan-National

Search Deals

Highest demand for flights based on searches. 20% potential increase in price ($112 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 10% potential price decrease ($41 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

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

Cheapest round-trip

Quickest round-trip

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Fri 12/25

2:05 pm-8:59 pm

1 stop5h 54m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$180

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Sat 12/26

2:32 pm-9:54 pm

1 stop6h 22m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$180

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Thu 12/3

2:00 pm-10:09 pm

1 stop7h 09m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$204

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Fri 12/25

12:50 pm-9:55 pm

2 stops8h 05m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$220

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Fri 12/4

4:39 pm-11:57 pm

1 stop6h 18m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$224

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Mon 1/4

4:45 pm-11:55 pm

1 stop6h 10m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$249

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Sat 12/26

5:35 am-2:50 pm

2 stops8h 15m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$279

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Sun 1/3

3:40 pm-11:55 pm

1 stop7h 15m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$330

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Sat 1/2

5:35 am-2:50 pm

2 stops8h 15m

Washington, D.C. Reagan-National

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$367

HarlingenWashington, D.C.

HRL Harlingen Valley Intl - DCA Washington, D.C. Reagan-National

HRLDCA

Harlingen Valley Intl

Tue 11/10

5:25 pm-11:57 pm

1 stop5h 32m

Washington, D.C. Reagan-National

Sat 11/14

12:50 pm-7:47 pm

1 stop7h 57m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 16 resultsSorted by cheapest first

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 October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust 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 Harlingen-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-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-Washington, D.C. Reagan-National Airport 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 Harlingen-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.

HRL-DCA

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.

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

4,217 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Southwest

7.9

Good

4,217 reviews

Southwest

7.9

Good

4,217 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

United Airlines

7.3

Good

10,454 reviews

Southwest

7.9

Good

4,217 reviews

Reviews

1 / 20

8.0

Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

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 to Washington, D.C. Reagan-National Airport?
United Airlines and Southwest can get you from Harlingen to Washington, D.C. Reagan-National Airport in just under 5h 32m. Your travel time can differ by up to 2h 33m. The distance from Harlingen to Washington, D.C. Reagan-National Airport is about 1477 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Harlingen to Washington, D.C. Reagan-National Airport round-trip?
Flying on United Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $250. Another option worth looking into is Southwest, starting at $373 round trip. United Airlines is 42% cheaper than the average price of flights available within the next 90 days to this destination.
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.

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Top 2 airlines flying from Harlingen to Reagan-National

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$250	Average$393	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$373	Average$413	FlexibilityNo cancel fee	On-time63%

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$180+ Cheap flights from Harlingen (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 12/25. 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

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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 October 30, 2026.

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 October 30, 2026.

Best flights from Harlingen to Reagan-NationalDiscover 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 October 30, 2026.

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 October 30, 2026.

Last-minute flights from Harlingen to Reagan-NationalDiscover last-minute flight deals from Harlingen to Reagan-National. Data last updated October 30, 2026 and is based on user searches.

Discover last-minute flight deals from Harlingen to Reagan-National. Data last updated October 30, 2026 and is based on user searches.

One-way flights from Harlingen to Reagan-NationalSearch for one-way flight options from Harlingen to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

Search for one-way flight options from Harlingen to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.

Find flight deals from Harlingen to Reagan-National

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 October.

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.

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

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

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

What are the cheapest airlines flying from Harlingen 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?

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

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Alternative routes for Harlingen to Reagan-National

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

Complete your trip

Complete your trip to Reagan-National by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Harlingen to Reagan-National by cabin class

Find flights from Harlingen to Reagan-National, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Harlingen and Reagan-National flights

Browse other Harlingen and Reagan-National flight options. Last updated on October 30, 2026.

Other flights from Harlingen

Browse through other flights departing from Harlingen. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Other flights to Reagan-National

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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 October 30, 2026.

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 October 30, 2026.

Last-minute flights from Harlingen to Reagan-National
Discover last-minute flight deals from Harlingen to Reagan-National. Data last updated October 30, 2026 and is based on user searches.

One-way flights from Harlingen to Reagan-National
Search for one-way flight options from Harlingen to Reagan-National. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.