How long is the flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

United Airlines and Delta can get you from Harlingen, Texas to Washington, D.C. Dulles Intl Airport in just under 5h 43m. Your travel time can differ by up to 1h 52m. Harlingen, Texas and Washington, D.C. Dulles Intl Airport are separated by a distance of 1462 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 to fly from Harlingen, Texas to Washington, D.C. Dulles Intl Airport one-way?

$136 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $165 and $672, respectively.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl 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. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl 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 IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Harlingen, Texas to Washington, D.C. Dulles Intl Airport as you normally would.

Most accurate provider : When it comes to deals on Harlingen, Texas-Washington, D.C. Dulles Intl 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. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl 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. Dulles Intl?

Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Washington, D.C. Dulles Intl. 1 airline have flights from Valley Intl to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Harlingen Valley Intl to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

Can I find deals for flights from Harlingen to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Harlingen to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Harlingen to Dulles Intl?

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

Can I find deals for business class flights from Harlingen to Dulles Intl?

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

$136+ Cheap Flights from Harlingen, TX to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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Find flight deals from Harlingen to Dulles Intl

Best flights from Harlingen to Dulles Intl
Discover carefully curated flight deals from Harlingen to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated noviembre 13, 2025.

mar. 3/105:16 pmHRL - IAD

1 stop5h 43mUnited Airlines

mié. 3/116:00 amIAD - HRL

1 stop5h 59mUnited Airlines

Deal found 11/10

$357

mar. 3/103:00 pmHRL - IAD

1 stop7h 35mDelta

mié. 3/116:10 amIAD - HRL

2 stops9h 19mDelta

Deal found 11/11

$418

One-way flights from Harlingen to Dulles Intl
Search for one-way flight options from Harlingen to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated noviembre 13, 2025.

sáb. 12/134:05 pmHRL - IAD

1 stop6h 57mDelta

Deal found 11/13

$136

sáb. 12/1312:13 pmHRL - IAD

2 stops10h 48mAmerican Airlines

Deal found 11/13

$165

dom. 11/303:04 pmHRL - IAD

3 stops46h 25mMultiple Airlines

Deal found 11/12

$553

sáb. 11/297:00 amHRL - IAD

1 stop15h 44mUnited Airlines

Deal found 11/12

$672

dom. 11/3012:10 pmHRL - IAD

1 stop22h 18mUnited Airlines

Deal found 11/12

$719

Cheap flight deals from Harlingen to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$357 (United Airlines)
One-way from	$136 (Delta)

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

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

Search Deals

From Harlingen Valley Intl to Washington, D.C. Dulles Intl

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

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

mar. 3/10

5:16 pm-11:59 pm

1 stop5h 43m

Washington, D.C. Dulles Intl

mié. 3/11

6:00 am-10:59 am

1 stop5h 59m

$357

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

mar. 3/10

3:00 pm-11:35 pm

1 stop7h 35m

Washington, D.C. Dulles Intl

mié. 3/11

6:10 am-2:29 pm

2 stops9h 19m

$418

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

sáb. 12/13

4:05 pm-12:02 am

1 stop6h 57m

$136

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

sáb. 12/13

12:13 pm-12:01 am

2 stops10h 48m

$165

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

dom. 11/30

3:04 pm-2:29 pm

3 stops46h 25m

$553

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

sáb. 11/29

7:00 am-11:44 pm

1 stop15h 44m

$672

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

dom. 11/30

12:10 pm-11:28 am

1 stop22h 18m

$719

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/13

Compare providers for flights from Harlingen to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Dulles Intl in November.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	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, Texas-Washington, D.C. Dulles Intl 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. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl 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 Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl 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.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with United Airlines from Harlingen to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,017 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,017 reviews

United Airlines

7.4

Good

9,017 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

What airport do you fly from for flights from Harlingen to Washington, D.C. Dulles Intl?
Harlingen Valley Intl (HRL), located 3.7 mi from the city center, is the airport you fly out of when you book flights from Harlingen to Washington, D.C. Dulles Intl. 1 airline have flights from Valley Intl to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Harlingen Valley Intl to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.
How long is the flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?
United Airlines and Delta can get you from Harlingen, Texas to Washington, D.C. Dulles Intl Airport in just under 5h 43m. Your travel time can differ by up to 1h 52m. Harlingen, Texas and Washington, D.C. Dulles Intl Airport are separated by a distance of 1462 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 to fly from Harlingen, Texas to Washington, D.C. Dulles Intl Airport one-way?
$136 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $165 and $672, respectively.
Can I find deals for flights from Harlingen to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Harlingen to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harlingen to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Dulles Intl.
Can I find deals for business class flights from Harlingen to Dulles Intl?
Yes. Cheapflights offers flight deals from Harlingen to Dulles Intl 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 airline flying from Harlingen to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$383	Average$417	FlexibilityNo cancel fee	On-time69%

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$136+ Cheap flights from Harlingen, TX (HRL) to Dulles Intl (IAD)

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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harlingen to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Harlingen to Dulles Intl

Best flights from Harlingen to Dulles IntlDiscover carefully curated flight deals from Harlingen to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated noviembre 13, 2025.

Discover carefully curated flight deals from Harlingen to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated noviembre 13, 2025.

Cheap flight deals from Harlingen to Dulles Intl

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 Harlingen to Washington, D.C. Dulles Intl Airport that are best for you.

Compare providers for flights from Harlingen to Dulles Intl

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 Dulles Intl in November.

Best time to book a flight from Harlingen to Dulles Intl

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

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with United Airlines from Harlingen to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up 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 Dulles Intl. 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. Dulles Intl?

How long is the flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

What are the cheapest airlines to fly from Harlingen, Texas to Washington, D.C. Dulles Intl Airport one-way?

Can I find deals for flights from Harlingen to Dulles Intl that include hotel bookings?

How can I find direct flights from Harlingen to Dulles Intl?

Can I find deals for business class flights from Harlingen to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Harlingen to Dulles Intl

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

Top airline flying from Harlingen to Dulles Intl

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Travel Smart

Best flights from Harlingen to Dulles Intl
Discover carefully curated flight deals from Harlingen to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated noviembre 13, 2025.