HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — IAD
nov. 26 — dic. 31
mié. 11/26
mié. 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Harrisburg to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 octubre 27, 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

$426
Provider with most accurate pricing for Harrisburg-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harrisburg-Washington, D.C. Dulles Intl flights.
Search Deals
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).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 octubre 27, 2025.

This United Airlines deal was found by Cheapflights users on 10/25. 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.
vie. 12/53:00 pmMDT - IAD
Nonstop1h 00mUnited Airlines
dom. 12/78:30 amIAD - MDT
Nonstop1h 00mUnited Airlines
Deal found 10/25$179
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 11/116:15 amMDT - IAD
Nonstop1h 03mUnited Airlines
sáb. 11/1512:55 pmIAD - MDT
Nonstop1h 03mUnited Airlines
Deal found 10/27$189
This American Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 11/115:40 amMDT - IAD
1 stop4h 39mAmerican Airlines
sáb. 11/158:09 pmIAD - MDT
1 stop4h 10mAmerican Airlines
Deal found 10/27$209
This American Airlines deal was found by Cheapflights users on 10/26. 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.
jue. 11/65:00 amMDT - IAD
1 stop3h 41mAmerican Airlines
vie. 11/145:35 pmIAD - MDT
1 stop6h 18mAmerican Airlines
Deal found 10/26$224
This United Airlines deal was found by Cheapflights users on 10/25. 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.
sáb. 11/222:35 pmMDT - IAD
Nonstop1h 00mUnited Airlines
sáb. 11/295:50 pmIAD - MDT
Nonstop1h 05mUnited Airlines
Deal found 10/25$232
This United Airlines deal was found by Cheapflights users on 10/26. 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.
lun. 10/276:15 amMDT - IAD
Nonstop1h 03mUnited Airlines
lun. 11/38:35 amIAD - MDT
Nonstop1h 00mUnited Airlines
Deal found 10/26$269
This American Airlines deal was found by Cheapflights users on 10/26. 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.
lun. 10/273:31 pmMDT - IAD
1 stop4h 14mAmerican Airlines
lun. 11/35:29 pmIAD - MDT
1 stop6h 24mAmerican Airlines
Deal found 10/26$289
This United Airlines deal was found by Cheapflights users on 10/26. 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.
mié. 10/296:15 amMDT - IAD
Nonstop1h 03mUnited Airlines
sáb. 11/112:55 pmIAD - MDT
Nonstop1h 03mUnited Airlines
Deal found 10/26$319
This American Airlines deal was found by Cheapflights users on 10/26. 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.
mié. 10/296:00 amMDT - IAD
1 stop3h 55mAmerican Airlines
sáb. 11/16:34 amIAD - MDT
1 stop6h 47mAmerican Airlines
Deal found 10/26$339
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
jue. 11/69:45 amMDT - IAD
1 stop23h 39mAllegiant Air
vie. 11/147:11 pmIAD - MDT
2 stops25h 11mAllegiant Air
Deal found 10/26$388
This American Airlines deal was found by Cheapflights users on 10/25. 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.
vie. 12/54:25 pmMDT - IAD
1 stop6h 43mAmerican Airlines
dom. 12/78:05 pmIAD - MDT
1 stop4h 13mAmerican Airlines
Deal found 10/25$394

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 octubre 27, 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

vie. 12/5

3:00 pm-4:00 pm

Nonstop1h 00m

Washington, D.C. Dulles Intl

dom. 12/7

8:30 am-9:30 am

Nonstop1h 00m

$179

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

sáb. 11/22

2:35 pm-3:35 pm

Nonstop1h 00m

Washington, D.C. Dulles Intl

sáb. 11/29

5:50 pm-6:55 pm

Nonstop1h 05m

$232

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

mié. 4/1

10:35 am-11:30 am

Nonstop0h 55m

Washington, D.C. Dulles Intl

dom. 4/5

12:55 pm-1:49 pm

Nonstop0h 54m

$239

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

mar. 11/11

2:35 pm-3:35 pm

Nonstop1h 00m

Washington, D.C. Dulles Intl

sáb. 11/15

12:55 pm-1:58 pm

Nonstop1h 03m

$249

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

vie. 3/13

6:00 am-6:55 am

Nonstop0h 55m

Washington, D.C. Dulles Intl

mar. 3/17

8:30 am-9:28 am

Nonstop0h 58m

$309

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

jue. 11/6

9:45 am-9:24 am

1 stop23h 39m

Washington, D.C. Dulles Intl

vie. 11/14

7:11 pm-8:22 pm

2 stops25h 11m

$388

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

vie. 12/5

4:25 pm-11:08 pm

1 stop6h 43m

Washington, D.C. Dulles Intl

dom. 12/7

8:05 pm-12:18 am

1 stop4h 13m

$394

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

mar. 12/9

6:15 am-7:18 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

mar. 12/9

8:30 am-9:30 am

Nonstop1h 00m

$402

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

mar. 12/9

5:40 am-10:20 am

1 stop4h 40m

Washington, D.C. Dulles Intl

mar. 12/9

5:29 pm-11:50 pm

1 stop6h 21m

$427

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

vie. 12/19

5:00 am-8:42 am

1 stop3h 42m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 11 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 October.
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 octubre 27, 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 53% 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 October 26, 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 octubre 27, 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
8,997 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

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
8,997 reviews
United Airlines
7.4
Good
8,997 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

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 fly from Harrisburg to Washington, D.C. Dulles Intl Airport in about 1h. The time it takes to get you to your destination is usually consistent. Harrisburg and Washington, D.C. Dulles Intl Airport are separated by a distance of 93 mi. Most flights are nonstop.

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

    Consider Lufthansa (97%), CommutAir (97%) or Copa Airlines (95%) 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 $614, our data shows the cheapest flight currently is $136. 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
Woodbridge
Tysons
Arlington
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 Dulles Intl flights
John F Kennedy Intl to Reagan-National flights
Newark to Dulles Intl flights
LaGuardia to Dulles Intl flights
LaGuardia to Reagan-National flights
Newark to Reagan-National 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
State College to Dulles Intl flights
Philadelphia to Dulles Intl flights
Philadelphia to Reagan-National flights
Philadelphia to Baltimore flights
Harrisburg to Reagan-National flights
Allentown to Dulles Intl flights
Harrisburg to Baltimore flights
Allentown to Reagan-National flights
Scranton to Dulles Intl flights
Scranton to Baltimore flights
State College to Reagan-National flights
State College to Baltimore flights
Scranton to Reagan-National flights
Allentown to Baltimore flights
Erie to Dulles Intl flights
Morgantown to Baltimore flights
Erie to Reagan-National flights
Erie to Baltimore flights
Johnstown to Baltimore flights
Latrobe to Baltimore flights
Elmira to Reagan-National flights
Altoona to Baltimore flights
Elmira to Baltimore 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 octubre 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$304FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.