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Reagan-National

$339+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — DCA
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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Cheap flight deals from Harlingen to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Harlingen (HRL) to Reagan-National (DCA). 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 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$339
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$250
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
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 19, 2026.

This United Airlines deal was found by Cheapflights users on 1/18. 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.
Mon 2/212:10 pm
HRL
-
DCA
1 stop5h 31m
United Airlines
Fri 2/66:00 am
DCA
-
HRL
1 stop6h 26m
United Airlines
Deal found 1/18$339
This United Airlines deal was found by Cheapflights users on 1/17. 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 2/205:22 pm
HRL
-
DCA
1 stop5h 28m
United Airlines
Sun 2/228:10 am
DCA
-
HRL
1 stop8h 54m
United Airlines
Deal found 1/17$349
This American Airlines deal was found by Cheapflights users on 1/17. 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.
Wed 2/46:02 am
HRL
-
DCA
2 stops7h 22m
American Airlines
Wed 2/116:30 am
DCA
-
HRL
1 stop9h 16m
American Airlines
Deal found 1/17$367
This American Airlines deal was found by Cheapflights users on 1/18. 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.
Mon 2/26:02 am
HRL
-
DCA
2 stops7h 22m
American Airlines
Fri 2/66:30 am
DCA
-
HRL
1 stop9h 19m
American Airlines
Deal found 1/18$392
This American Airlines deal was found by Cheapflights users on 1/17. 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.
Mon 2/93:22 pm
HRL
-
DCA
1 stop6h 38m
American Airlines
Thu 2/126:23 am
DCA
-
HRL
2 stops8h 51m
American Airlines
Deal found 1/17$405
This United Airlines deal was found by Cheapflights users on 1/18. 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 2/312:10 pm
HRL
-
DCA
1 stop5h 31m
United Airlines
Sat 2/711:00 am
DCA
-
HRL
1 stop6h 06m
United Airlines
Deal found 1/18$419
This American Airlines deal was found by Cheapflights users on 1/17. 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 2/2010:42 am
HRL
-
DCA
1 stop8h 04m
American Airlines
Sun 2/226:20 am
DCA
-
HRL
2 stops8h 54m
American Airlines
Deal found 1/17$420
This United Airlines deal was found by Cheapflights users on 1/17. 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 3/139:20 am
HRL
-
DCA
1 stop5h 39m
United Airlines
Tue 3/1711:00 am
DCA
-
HRL
1 stop6h 04m
United Airlines
Deal found 1/17$432
This Southwest deal was found by Cheapflights users on 1/17. 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 3/1312:30 pm
HRL
-
DCA
2 stops7h 25m
Southwest
Tue 3/177:30 am
DCA
-
HRL
2 stops9h 40m
Southwest
Deal found 1/17$489
This Southwest deal was found by Cheapflights users on 1/18. 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 3/266:00 am
HRL
-
DCA
1 stop5h 10m
Southwest
Sun 3/291:05 pm
DCA
-
HRL
1 stop12h 00m
Southwest
Deal found 1/18$496

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Reagan-National 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 19, 2026.
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

Harlingen

Fly to

Reagan-National

Route

Depart

Return

Price

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Wed 2/4

11:06 am-7:44 pm

1 stop7h 38m

Washington, D.C. Reagan-National

Wed 2/11

6:30 am-2:46 pm

1 stop9h 16m

$339

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 2/2

12:10 pm-6:41 pm

1 stop5h 31m

Washington, D.C. Reagan-National

Fri 2/6

6:00 am-11:26 am

1 stop6h 26m

$339

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 2/20

5:22 pm-11:50 pm

1 stop5h 28m

Washington, D.C. Reagan-National

Sun 2/22

8:10 am-4:04 pm

1 stop8h 54m

$349

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Mon 2/9

3:22 pm-11:00 pm

1 stop6h 38m

Washington, D.C. Reagan-National

Thu 2/12

6:23 am-2:14 pm

2 stops8h 51m

$405

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Tue 2/3

12:10 pm-6:41 pm

1 stop5h 31m

Washington, D.C. Reagan-National

Sat 2/7

11:00 am-4:06 pm

1 stop6h 06m

$419

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 2/20

10:42 am-7:46 pm

1 stop8h 04m

Washington, D.C. Reagan-National

Sun 2/22

6:20 am-2:14 pm

2 stops8h 54m

$420

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 3/13

9:20 am-3:59 pm

1 stop5h 39m

Washington, D.C. Reagan-National

Tue 3/17

11:00 am-4:04 pm

1 stop6h 04m

$432

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Fri 3/13

12:30 pm-8:55 pm

2 stops7h 25m

Washington, D.C. Reagan-National

Tue 3/17

6:00 am-4:10 pm

1 stop11h 10m

$469

HarlingenWashington, D.C.

HRL - DCA

HRLDCA

Harlingen Valley Intl

Thu 3/26

6:00 am-12:10 pm

1 stop5h 10m

Washington, D.C. Reagan-National

Sun 3/29

1:05 pm-12:05 am

1 stop12h 00m

$496

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen, Texas-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, 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 Expedia the most. Expedia 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, January is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. Reagan-National Airport (average of $250). Flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport in November is currently the most expensive (average of $443). 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 insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated January 19, 2026.
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
8.0
Very good
4,264 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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
8.0
Very good
4,264 reviews
Southwest
8.0
Very good
4,264 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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
9,177 reviews
Southwest
8.0
Very good
4,264 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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

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?

    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?

    American Airlines and United Airlines can get you from Harlingen, Texas to Washington, D.C. Reagan-National Airport in just under 5h 31m. Your travel time can differ by up to 2h 07m. 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 ($250), and Southwest ($333) offers the cheapest pricing from Harlingen, Texas to Washington, D.C. Reagan-National Airport. You may be able to fly from Harlingen, Texas to Washington, D.C. Reagan-National Airport for 33% less than the average price by searching for these airlines.

  • 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, January is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. Reagan-National Airport (average of $250). Flying from Harlingen, Texas to Washington, D.C. Reagan-National Airport in November is currently the most expensive (average of $443). 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

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

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Largo
Bowie
McLean
Clinton
Herndon

Browse thousands of different options on Cheapflights for your next trip

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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.
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Top 2 airlines flying from Harlingen to Reagan-National

Discover the top 2 airlines that operate flights from Harlingen to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$250Average$378FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$333Average$438FlexibilityNo cancel feeOn-time63%

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