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Dulles Intl

$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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — IAD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Harrisburg to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) to Dulles Intl (IAD). 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 September 11, 2025.

Round-trip from

$179
(United Airlines)

Popular in

April

Cheapest in

August

Average price

$269
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).
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Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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 10/76:15 amMDT - IAD
Nonstop1h 02mUnited Airlines
Tue 10/148:30 amIAD - MDT
Nonstop0h 59mUnited Airlines
Deal found 9/11$179
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/2610:25 amMDT - IAD
Nonstop1h 02mUnited Airlines
Tue 9/308:30 amIAD - MDT
Nonstop0h 59mUnited Airlines
Deal found 9/11$189
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/306:00 amMDT - IAD
1 stop3h 55mAmerican Airlines
Tue 11/115:29 pmIAD - MDT
1 stop6h 24mAmerican Airlines
Deal found 9/11$199
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 9/256:15 amMDT - IAD
Nonstop1h 02mUnited Airlines
Tue 10/148:30 amIAD - MDT
Nonstop0h 59mUnited Airlines
Deal found 9/11$244
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/2510:25 amMDT - IAD
Nonstop1h 02mUnited Airlines
Mon 9/298:30 amIAD - MDT
Nonstop0h 59mUnited Airlines
Deal found 9/10$249
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/162:24 pmMDT - IAD
Nonstop1h 01mUnited Airlines
Sun 9/218:35 amIAD - MDT
Nonstop0h 58mUnited Airlines
Deal found 9/11$259
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/126:15 amMDT - IAD
Nonstop1h 01mUnited Airlines
Sun 9/148:35 amIAD - MDT
Nonstop0h 58mUnited Airlines
Deal found 9/11$309
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2611:07 amMDT - IAD
1 stop7h 12mMultiple Airlines
Mon 10/139:36 pmIAD - MDT
2 stops34h 42mMultiple Airlines
Deal found 9/11$347
This United Airlines deal was found by Cheapflights users on 9/9. 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 12/226:15 amMDT - IAD
Nonstop1h 08mUnited Airlines
Tue 12/238:31 amIAD - MDT
Nonstop1h 05mUnited Airlines
Deal found 9/9$407
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 12/206:15 amMDT - IAD
Nonstop1h 08mUnited Airlines
Sat 1/178:30 amIAD - MDT
2 stops12h 45mUnited Airlines
Deal found 9/11$408

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harrisburg to Dulles Intl 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 September 11, 2025.
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

Harrisburg

Fly to

Dulles Intl

Route

Depart

Return

Price

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 10/9

6:15 am-7:17 am

Nonstop1h 02m

Washington, D.C. Dulles Intl

Thu 10/16

8:30 am-9:29 am

Nonstop0h 59m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 12/20

6:15 am-7:23 am

Nonstop1h 08m

Washington, D.C. Dulles Intl

Sat 1/17

8:30 am-9:35 am

Nonstop1h 05m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 10/30

6:15 am-7:18 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

Tue 11/11

8:35 am-9:35 am

Nonstop1h 00m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Tue 10/7

6:15 am-7:17 am

Nonstop1h 02m

Washington, D.C. Dulles Intl

Tue 10/14

8:30 am-9:29 am

Nonstop0h 59m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 10/30

6:00 am-9:55 am

1 stop3h 55m

Washington, D.C. Dulles Intl

Tue 11/11

5:29 pm-11:53 pm

1 stop6h 24m

$199

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 9/25

6:15 am-7:17 am

Nonstop1h 02m

Washington, D.C. Dulles Intl

Tue 10/14

8:30 am-9:29 am

Nonstop0h 59m

$244

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 9/26

10:25 am-11:27 am

Nonstop1h 02m

Washington, D.C. Dulles Intl

Mon 10/13

8:30 am-9:29 am

Nonstop0h 59m

$244

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 9/25

10:25 am-11:27 am

Nonstop1h 02m

Washington, D.C. Dulles Intl

Mon 9/29

8:30 am-9:29 am

Nonstop0h 59m

$249

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 9/26

11:07 am-6:19 pm

1 stop7h 12m

Washington, D.C. Dulles Intl

Mon 10/13

9:36 pm-8:18 am

2 stops34h 42m

$347

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 9/26

2:43 pm-3:45 pm

Nonstop1h 02m

Washington, D.C. Dulles Intl

Tue 9/30

6:50 pm-10:14 am

1 stop15h 24m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 16 results
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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, August is the cheapest month in which you can book a flight from Harrisburg to Washington, D.C. Dulles Intl Airport (average of $292). 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?

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 September 11, 2025.

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 48% 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?

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Dulles Intl. Price data was last updated on September 7, 2025.

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated September 11, 2025.
See what other customers who have flown with United 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
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

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
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

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

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?

    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 4 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.

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

    Airlines like United Airlines and American Airlines fly from Harrisburg to Washington, D.C. Dulles Intl Airport in about 1h 02m. The time it takes to get you to your destination can typically vary by up to 2h 53m. Harrisburg and Washington, D.C. Dulles Intl Airport are separated by a distance of 93 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    United Airlines, at $224, was found to be the cheapest airline from Harrisburg to Washington, D.C. Dulles Intl Airport.. United Airlines is 23% 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 Copa Airlines (90%), Avianca (85%) or CommutAir (84%) 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 $1,125, our data shows the cheapest flight currently is $132. 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, August is the cheapest month in which you can book a flight from Harrisburg to Washington, D.C. Dulles Intl Airport (average of $292). 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

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

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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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.
John F Kennedy Intl to Reagan-National flights
John F Kennedy Intl to Dulles Intl flights
LaGuardia to Reagan-National flights
Newark to Dulles Intl flights
Newark to Reagan-National flights
LaGuardia to Dulles Intl flights
LaGuardia to Baltimore flights
John F Kennedy Intl to Baltimore flights
Newark to Baltimore flights
Pittsburgh to Dulles Intl flights
Pittsburgh to Baltimore flights
Pittsburgh to Reagan-National flights
Allentown to Dulles Intl flights
Philadelphia to Reagan-National flights
Philadelphia to Dulles Intl flights
State College to Dulles Intl flights
Philadelphia to Baltimore flights
Scranton to Baltimore flights
State College to Reagan-National flights
Morgantown to Baltimore flights
State College to Baltimore flights
Harrisburg to Baltimore flights
Johnstown to Baltimore flights
Scranton to Dulles Intl flights
Allentown to Baltimore flights
Allentown to Reagan-National flights
Scranton to Reagan-National flights
Harrisburg to Reagan-National flights
Erie to Baltimore flights
Altoona to Baltimore flights
Erie to Dulles Intl flights
Erie to Reagan-National flights
Latrobe to Baltimore flights
Elmira to Baltimore flights
Elmira to Reagan-National flights
Hagerstown to Baltimore flights

Top airline flying from Harrisburg to Dulles Intl

Discover the top airline that operate flights from Harrisburg to Dulles Intl. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$224Average$304FlexibilityNo cancel feeOn-time69%

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