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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 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — IAD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(United Airlines)

Popular in

October

Cheapest in

December

Average price

$244
Provider with most accurate pricing for Harrisburg-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Harrisburg-Washington, D.C. Dulles Intl flights.
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From Harrisburg to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 6, 2025.

This United Airlines deal was found by Cheapflights users on 11/4. 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 12/46:15 amMDT - IAD
Nonstop1h 03mUnited Airlines
Thu 12/118:30 amIAD - MDT
Nonstop1h 00mUnited Airlines
Deal found 11/4$179
This American Airlines deal was found by Cheapflights users on 11/6. 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 12/54:25 pmMDT - IAD
1 stop6h 43mAmerican Airlines
Sat 12/66:25 amIAD - MDT
1 stop4h 47mAmerican Airlines
Deal found 11/6$199
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/272:35 pmMDT - IAD
Nonstop1h 00mUnited Airlines
Mon 12/18:35 amIAD - MDT
Nonstop1h 00mUnited Airlines
Deal found 11/5$209
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 11/155:00 amMDT - IAD
1 stop3h 41mAmerican Airlines
Sun 11/168:09 pmIAD - MDT
1 stop4h 10mAmerican Airlines
Deal found 11/5$259
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/2010:25 amMDT - IAD
Nonstop0h 59mUnited Airlines
Mon 11/245:50 pmIAD - MDT
Nonstop1h 05mUnited Airlines
Deal found 11/5$269
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Thu 12/44:57 pmMDT - IAD
1 stop15h 44mAllegiant Air
Thu 12/117:57 pmIAD - MDT
2 stops39h 31mAllegiant Air
Deal found 11/4$349
This American Airlines deal was found by Cheapflights users on 11/4. 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 12/45:00 amMDT - IAD
1 stop3h 44mAmerican Airlines
Thu 12/119:15 amIAD - MDT
1 stop5h 37mAmerican Airlines
Deal found 11/4$369
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 12/2810:30 amMDT - IAD
Nonstop1h 08mUnited Airlines
Tue 12/3012:50 pmIAD - MDT
Nonstop1h 04mUnited Airlines
Deal found 11/5$407
This United Airlines deal was found by Cheapflights users on 11/5. 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 11/152:35 pmMDT - IAD
Nonstop1h 00mUnited Airlines
Sun 11/1612:55 pmIAD - MDT
Nonstop1h 03mUnited Airlines
Deal found 11/5$414
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/56:15 amMDT - IAD
Nonstop1h 03mUnited Airlines
Sat 12/610:35 pmIAD - MDT
1 stop11h 31mUnited Airlines
Deal found 11/6$423

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 November 6, 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

Fri 12/19

6:15 am-7:23 am

Nonstop1h 08m

Washington, D.C. Dulles Intl

Mon 1/5

12:50 pm-1:54 pm

Nonstop1h 04m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 12/4

6:15 am-7:18 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

Thu 12/11

8:30 am-9:30 am

Nonstop1h 00m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 12/5

3:00 pm-4:00 pm

Nonstop1h 00m

Washington, D.C. Dulles Intl

Sat 12/6

12:50 pm-1:52 pm

Nonstop1h 02m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 12/19

5:00 am-8:42 am

1 stop3h 42m

Washington, D.C. Dulles Intl

Mon 1/5

9:12 am-2:57 pm

1 stop5h 45m

$199

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 12/5

4:25 pm-11:08 pm

1 stop6h 43m

Washington, D.C. Dulles Intl

Sat 12/6

6:25 am-11:12 am

1 stop4h 47m

$199

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 11/27

2:35 pm-3:35 pm

Nonstop1h 00m

Washington, D.C. Dulles Intl

Mon 12/1

8:35 am-9:35 am

Nonstop1h 00m

$209

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 11/20

10:25 am-11:24 am

Nonstop0h 59m

Washington, D.C. Dulles Intl

Mon 11/24

5:50 pm-6:55 pm

Nonstop1h 05m

$269

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 11/22

6:15 am-7:18 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

Wed 11/26

8:35 am-9:35 am

Nonstop1h 00m

$269

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 3/13

6:00 am-6:55 am

Nonstop0h 55m

Washington, D.C. Dulles Intl

Tue 3/17

8:30 am-9:28 am

Nonstop0h 58m

$319

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 12/4

5:00 am-8:44 am

1 stop3h 44m

Washington, D.C. Dulles Intl

Thu 12/11

9:15 am-2:52 pm

1 stop5h 37m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 20 results
1
2

Compare providers for flights from Harrisburg 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 Harrisburg to Dulles Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 Harrisburg-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 Harrisburg-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harrisburg-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 Harrisburg-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 Harrisburg-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 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, December is the cheapest month in which you can book a flight from Harrisburg to Washington, D.C. Dulles Intl Airport (average of $93). Flying from Harrisburg to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $120). 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 November 6, 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 52% 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 November 2, 2025.

Travelers seeking maximum savings on their Harrisburg to Washington, D.C. Dulles Intl Airport flight should consider departing on Monday 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 November 6, 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
9,007 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

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
9,007 reviews
United Airlines
7.4
Good
9,007 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

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

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 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.

  • 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 08m. The time it takes to get you to your destination can typically vary by up to 2h 34m. 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 $179, was found to be the cheapest airline from Harrisburg to Washington, D.C. Dulles Intl Airport.. United Airlines is 37% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $213 on Allegiant Air. Other airlines that offer cheap prices include American Airlines from $214 and United Airlines from $219 one-way.

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

    Consider GoJet (100%), ANA (100%) or United Airlines (97%) 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 $944, our data shows the cheapest flight currently is $162. 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, December is the cheapest month in which you can book a flight from Harrisburg to Washington, D.C. Dulles Intl Airport (average of $93). Flying from Harrisburg to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $120). 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
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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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.
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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$304FlexibilityNo cancel feeOn-time69%

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