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

United Airlines, at $179, was found to be the cheapest airline from Harrisburg to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be American Airlines. United Airlines is 38% 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. 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 are the cheapest flights from Harrisburg to Washington, D.C. Dulles Intl Airport?

While on average a flight from Harrisburg to Washington, D.C. Dulles Intl Airport is generally $984, our data shows the cheapest flight currently is $193. When looking at the most popular route, (Harrisburg - Washington, D.C. Dulles Intl), you can expect to pay $179 for that flight.

What are the most reliable airlines from Harrisburg to Washington, D.C. Dulles Intl Airport?

Consider GoJet (100%), Copa Airlines (89%) or United Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Harrisburg to Washington, D.C. Dulles Intl Airport.

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

Users have found that leaving on a Thursday can be a cost-effective option. It’s possible to save up to 34% on your flight compared to booking on days when demand is much higher.

What airport do you fly from for flights from Harrisburg to Washington, D.C. Dulles Intl?

For a flight from Harrisburg to Washington, D.C. Dulles Intl, you will be flying from Harrisburg. Harrisburg (MDT) is just 8.5 mi from the center of the city. Harrisburg is the only Harrisburg airport and it handles 7 outbound flights to Washington, D.C. Dulles Intl per day. 1 airline has flights to Washington, D.C. Dulles Intl from Harrisburg on a regular basis.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Harrisburg 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.

$179+ Flights from Harrisburg to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Harrisburg to Dulles Intl

Round-trip from	$179 (United Airlines)
Popular in	April
Cheapest in	August
Average price	$249

From Harrisburg to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 24% potential increase in price ($94 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

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Find flight deals from Harrisburg to Dulles Intl

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

Fri 8/296:15 amMDT - IAD

Nonstop1h 01mUnited Airlines

Mon 9/18:35 amIAD - MDT

Nonstop0h 58mUnited Airlines

Deal found 7/28

$179

Fri 8/291:55 pmMDT - IAD

1 stop5h 44mAmerican Airlines

Mon 9/16:34 amIAD - MDT

1 stop4h 52mAmerican Airlines

Deal found 7/28

$313

Best flights from Harrisburg to Dulles Intl
Discover carefully curated flight deals from Harrisburg to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Fri 8/296:15 amMDT - IAD

Nonstop1h 01mUnited Airlines

Mon 9/18:35 amIAD - MDT

Nonstop0h 58mUnited Airlines

Deal found 7/28

$179

Sat 1/105:00 amMDT - IAD

1 stop3h 41mAmerican Airlines

Sat 1/178:10 pmIAD - MDT

1 stop3h 47mAmerican Airlines

Deal found 7/28

$199

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

Tue 8/510:35 amMDT - IAD

Nonstop0h 56mUnited Airlines

Wed 8/68:45 amIAD - MDT

Nonstop1h 00mUnited Airlines

Deal found 7/28

$677

Tue 8/512:05 pmMDT - IAD

1 stop5h 04mAmerican Airlines

Wed 8/67:44 amIAD - MDT

1 stop4h 41mAmerican Airlines

Deal found 7/28

$697

Fri 8/296:15 amMDT - IAD

Nonstop1h 01mUnited Airlines

Mon 9/18:35 amIAD - MDT

Nonstop0h 58mUnited Airlines

Deal found 7/28

$179

Fri 8/291:55 pmMDT - IAD

1 stop5h 44mAmerican Airlines

Mon 9/16:34 amIAD - MDT

1 stop4h 52mAmerican Airlines

Deal found 7/28

$313

One-way flights from Harrisburg to Dulles Intl
Search for one-way flight options from Harrisburg to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Tue 8/262:49 pmMDT - IAD

1 stop4h 03mAmerican Airlines

Deal found 7/29

$214

Tue 8/262:24 pmMDT - IAD

Nonstop1h 01mUnited Airlines

Deal found 7/29

$219

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 8/29

6:15 am-7:16 am

Nonstop1h 01m

Washington, D.C. Dulles Intl

Mon 9/1

8:35 am-9:33 am

Nonstop0h 58m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 1/10

5:00 am-8:41 am

1 stop3h 41m

Washington, D.C. Dulles Intl

Sat 1/17

8:10 pm-11:57 pm

1 stop3h 47m

$199

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Tue 8/26

2:49 pm-6:52 pm

1 stop4h 03m

$214

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Tue 8/26

2:24 pm-3:25 pm

Nonstop1h 01m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Harrisburg to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Harrisburg 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 Harrisburg to Washington, D.C. Dulles Intl Airport

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

Currently, July is the cheapest month in which you can book a flight from Harrisburg to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Harrisburg to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 time of day to fly from MDT to IAD?

It’s typically best to fly out from Harrisburg to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 45% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

Weekly flight availability from Harrisburg to Washington, D.C. Dulles Intl Airport

The most flights from MDT to IAD are scheduled on a Thursday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with United Airlines and American Airlines from Harrisburg to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,896 reviews

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What airport do you fly from for flights from Harrisburg to Washington, D.C. Dulles Intl?
For a flight from Harrisburg to Washington, D.C. Dulles Intl, you will be flying from Harrisburg. Harrisburg (MDT) is just 8.5 mi from the center of the city. Harrisburg is the only Harrisburg airport and it handles 7 outbound flights to Washington, D.C. Dulles Intl per day. 1 airline has flights to Washington, D.C. Dulles Intl from Harrisburg on a regular basis.
What are the cheapest airlines flying from Harrisburg to Washington, D.C. Dulles Intl Airport round-trip?
United Airlines, at $179, was found to be the cheapest airline from Harrisburg to Washington, D.C. Dulles Intl Airport. An alternate airline flying to your destination would be American Airlines. United Airlines is 38% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Harrisburg to Washington, D.C. Dulles Intl Airport?
Consider GoJet (100%), Copa Airlines (89%) or United Airlines (88%) when booking your flight. These represent the most reliable airlines when flying from Harrisburg to Washington, D.C. Dulles Intl Airport.
What are the cheapest flights from Harrisburg to Washington, D.C. Dulles Intl Airport?
While on average a flight from Harrisburg to Washington, D.C. Dulles Intl Airport is generally $984, our data shows the cheapest flight currently is $193. When looking at the most popular route, (Harrisburg - Washington, D.C. Dulles Intl), you can expect to pay $179 for that flight.
Can I find deals for flights from Harrisburg to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Harrisburg to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harrisburg to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harrisburg to Dulles Intl.
Can I find deals for business class flights from Harrisburg to Dulles Intl?
Yes. Cheapflights offers flight deals from Harrisburg 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 Harrisburg to Washington, D.C. Dulles Intl Airport?
Currently, July is the cheapest month in which you can book a flight from Harrisburg to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Harrisburg to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 Harrisburg to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$209	Average$299	FlexibilityNo cancel fee	On-time69%

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$179+ Cheap flights from Harrisburg (MDT) to Dulles Intl (IAD)

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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harrisburg to Dulles Intl with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Harrisburg to Dulles Intl

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Harrisburg to Dulles Intl

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

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

Cheapflights Fare Finder

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

Best time to book a flight from Harrisburg to Dulles Intl

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Harrisburg to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Dulles Intl. Price data was last updated on July 27, 2025.

Weekly flight availability from Harrisburg to Washington, D.C. Dulles Intl Airport

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with United Airlines and American Airlines from Harrisburg to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares 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 Harrisburg 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 Harrisburg to Washington, D.C. Dulles Intl?

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

What are the most reliable airlines from Harrisburg to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Harrisburg to Washington, D.C. Dulles Intl Airport?

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

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

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

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

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 Harrisburg to Dulles Intl

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

Top airline flying from Harrisburg to Dulles Intl

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