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

Cheapflights users have booked flights from Harlingen, Texas to Washington, D.C. Dulles Intl Airport round-trip from $317. Another airline that can offer you cheap pricing is American Airlines.

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

$119 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $204 and $209, respectively.

What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Harlingen, Texas to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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.

What is the cheapest day to fly from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Harlingen, Texas to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

Flying to your destination on a Tuesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C. Dulles Intl Airport. Check prices with Cheapflights to find a great deal for your trip.

What is the cheapest month to fly from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

The best pricing can be found in the month of February. Prices to Washington, D.C. Dulles Intl Airport from Harlingen, Texas average $362. You can even find prices in February for less than $362, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $268. The month of July appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Harlingen, Texas. Flying in the targeted month can save you up to 36%.

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

Unlike in the morning, when flights are generally more expensive, you can save up to 2% on flights from Harlingen, Texas to Washington, D.C. Dulles Intl Airport by exploring options for tickets at noon.

Most accurate provider : When it comes to deals on Harlingen, Texas-Washington, D.C. Dulles Intl 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. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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.

$119+ Flights from Harlingen, TX to Washington, D.C. Dulles Intl Airport - Compare & Save Big

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1. Tell us where you want to go

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Cheap flight deals from Harlingen to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$317 (United Airlines)
One-way from	$119 (United Airlines)
Popular in	July
Cheapest in	February
Average price	$433

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

Search Deals

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

Search Deals

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

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Find flight deals from Harlingen to Dulles Intl

Cheapest flights from Harlingen to Dulles Intl
Explore the most affordable flight options available from Harlingen to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Fri 5/162:14 pmHRL - IAD

1 stop6h 59mUnited Airlines

Sun 5/186:00 amIAD - HRL

1 stop8h 24mUnited Airlines

Deal found 4/29

$317

Fri 5/164:27 pmHRL - IAD

1 stop5h 30mAmerican Airlines

Mon 5/195:07 pmIAD - HRL

1 stop7h 52mAmerican Airlines

Deal found 4/29

$329

Thu 5/12:41 pmHRL - IAD

1 stop7h 59mDelta

Mon 5/56:00 amIAD - HRL

1 stop8h 46mDelta

Deal found 4/29

$709

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 April 29, 2025.

Fri 5/162:14 pmHRL - IAD

1 stop6h 59mUnited Airlines

Sun 5/186:00 amIAD - HRL

1 stop8h 24mUnited Airlines

Deal found 4/29

$317

Fri 5/164:27 pmHRL - IAD

1 stop5h 30mAmerican Airlines

Mon 5/195:07 pmIAD - HRL

1 stop7h 52mAmerican Airlines

Deal found 4/29

$329

Last-minute flights from Harlingen to Dulles Intl
Discover last-minute flight deals from Harlingen to Dulles Intl. Data last updated April 29, 2025 and is based on user searches.

Thu 5/12:41 pmHRL - IAD

1 stop7h 59mDelta

Mon 5/56:00 amIAD - HRL

1 stop8h 46mDelta

Deal found 4/29

$709

Fri 5/94:27 pmHRL - IAD

1 stop5h 30mAmerican Airlines

Sun 5/116:17 amIAD - HRL

1 stop6h 11mAmerican Airlines

Deal found 4/29

$639

Fri 5/162:14 pmHRL - IAD

1 stop6h 59mUnited Airlines

Sun 5/186:00 amIAD - HRL

1 stop8h 24mUnited Airlines

Deal found 4/29

$317

Fri 5/164:27 pmHRL - IAD

1 stop5h 30mAmerican Airlines

Mon 5/195:07 pmIAD - HRL

1 stop7h 52mAmerican Airlines

Deal found 4/29

$329

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 April 29, 2025.

Thu 5/155:30 pmHRL - IAD

1 stop5h 28mUnited Airlines

Deal found 4/28

$119

Wed 5/285:19 pmHRL - IAD

2 stops14h 55mDelta

Deal found 4/28

$204

Mon 7/1410:07 amHRL - IAD

2 stops12h 51mAmerican Airlines

Deal found 4/28

$209

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

Fri 5/16

2:14 pm-10:13 pm

1 stop6h 59m

Washington, D.C. Dulles Intl

Sun 5/18

6:00 am-1:24 pm

1 stop8h 24m

$317

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Fri 5/16

4:27 pm-10:57 pm

1 stop5h 30m

Washington, D.C. Dulles Intl

Mon 5/19

5:07 pm-11:59 pm

1 stop7h 52m

$329

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Thu 5/15

5:30 pm-11:58 pm

1 stop5h 28m

$119

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Wed 5/28

5:19 pm-9:14 am

2 stops14h 55m

$204

HarlingenWashington, D.C.

HRL - IAD

HRLIAD

Harlingen Valley Intl

Mon 7/14

10:07 am-11:58 pm

2 stops12h 51m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen, Texas-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.
What are the cheapest airlines flying from Harlingen, Texas to Washington, D.C. Dulles Intl Airport round-trip?
Cheapflights users have booked flights from Harlingen, Texas to Washington, D.C. Dulles Intl Airport round-trip from $317. Another airline that can offer you cheap pricing is American Airlines.
What are the cheapest airlines to fly from Harlingen, Texas to Washington, D.C. Dulles Intl Airport one-way?
$119 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $204 and $209, 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.
What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Harlingen, Texas to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). 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

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Top airline flying from Harlingen to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$306	Average$626	FlexibilityNo cancel fee	On-time69%

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$119+ 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 5/15. 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

Cheap flight deals from Harlingen to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Harlingen to Dulles Intl

Cheapest flights from Harlingen to Dulles IntlExplore the most affordable flight options available from Harlingen to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

Explore the most affordable flight options available from Harlingen to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

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 April.

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.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

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?

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

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?

What is the cheapest month to book a flight from Harlingen, Texas to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Harlingen?

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Alternative routes for Harlingen to Dulles Intl

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Top airline flying from Harlingen to Dulles Intl

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Cheapest flights from Harlingen to Dulles Intl
Explore the most affordable flight options available from Harlingen to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.