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Dulles Intl

$174+ Cheap flights from Harrisburg (MDT) 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — IAD
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Cheap 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 18, 2026.

This United Airlines deal was found by Cheapflights users on 7/14. 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 8/67:59 pm
MDT
-
IAD
Nonstop0h 58m
United Airlines
Sun 8/98:35 am
IAD
-
MDT
Nonstop1h 05m
United Airlines
Deal found 7/14$239
This American Airlines deal was found by Cheapflights users on 7/14. 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 8/62:45 pm
MDT
-
IAD
1 stop6h 11m
American Airlines
Sun 8/95:08 am
IAD
-
MDT
1 stop3h 54m
American Airlines
Deal found 7/14$259
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Sun 8/99:12 pm
MDT
-
IAD
2 stops14h 08m
Multiple Airlines
Sun 8/163:27 pm
IAD
-
MDT
1 stop19h 20m
Multiple Airlines
Deal found 7/13$298
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/610:30 am
MDT
-
IAD
Nonstop0h 58m
United Airlines
Mon 8/108:35 am
IAD
-
MDT
Nonstop1h 05m
United Airlines
Deal found 7/13$309
This United Airlines deal was found by Cheapflights users on 7/14. 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 10/127:59 pm
MDT
-
IAD
Nonstop0h 58m
United Airlines
Sun 10/188:35 am
IAD
-
MDT
Nonstop1h 05m
United Airlines
Deal found 7/14$324
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Wed 9/232:52 pm
MDT
-
IAD
Nonstop0h 58m
United Airlines
Thu 9/248:35 am
IAD
-
MDT
Nonstop1h 05m
United Airlines
Deal found 7/14$327
This United Airlines deal was found by Cheapflights users on 7/13. 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 7/286:15 am
MDT
-
IAD
Nonstop0h 58m
United Airlines
Sat 8/110:26 pm
IAD
-
MDT
Nonstop1h 04m
United Airlines
Deal found 7/13$339
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Wed 9/1611:17 am
MDT
-
IAD
1 stop6h 14m
American Airlines
Thu 9/176:14 am
IAD
-
MDT
1 stop4h 03m
American Airlines
Deal found 7/14$347
This American Airlines deal was found by Cheapflights users on 7/14. 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 10/105:49 pm
MDT
-
IAD
1 stop6h 09m
American Airlines
Sat 10/175:01 am
IAD
-
MDT
1 stop4h 10m
American Airlines
Deal found 7/14$359
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/69:12 pm
MDT
-
IAD
2 stops14h 08m
Multiple Airlines
Sun 8/93:27 pm
IAD
-
MDT
1 stop19h 20m
Multiple Airlines
Deal found 7/14$363
This American Airlines deal was found by Cheapflights users on 7/14. 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 10/93:28 pm
MDT
-
IAD
1 stop5h 48m
American Airlines
Sat 10/245:01 am
IAD
-
MDT
1 stop4h 10m
American Airlines
Deal found 7/14$373

Find 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 July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(United Airlines)

One-way from

$174
(American Airlines)
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
One-way flight from Harrisburg to Washington, D.C. Dulles Intl
Search Deals

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 July 18, 2026.
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

Cheapest round-trip

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 8/13

7:59 pm-8:57 pm

Nonstop0h 58m

Washington, D.C. Dulles Intl

Thu 8/20

12:59 pm-2:03 pm

Nonstop1h 04m

$239

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Thu 8/6

10:30 am-11:28 am

Nonstop0h 58m

Washington, D.C. Dulles Intl

Mon 8/10

8:35 am-9:40 am

Nonstop1h 05m

$309
Quickest round-trip

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Wed 8/12

7:59 pm-8:57 pm

Nonstop0h 58m

Washington, D.C. Dulles Intl

Tue 8/18

10:30 pm-11:30 pm

Nonstop1h 00m

$309

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 8/29

7:59 pm-8:57 pm

Nonstop0h 58m

Washington, D.C. Dulles Intl

Wed 9/2

10:30 pm-11:30 pm

Nonstop1h 00m

$309

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Wed 9/23

2:52 pm-3:50 pm

Nonstop0h 58m

Washington, D.C. Dulles Intl

Thu 9/24

8:35 am-9:40 am

Nonstop1h 05m

$327

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 7/31

2:52 pm-3:50 pm

Nonstop0h 58m

Washington, D.C. Dulles Intl

Mon 8/3

5:35 pm-6:44 pm

Nonstop1h 09m

$339

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 8/1

7:59 pm-8:57 pm

Nonstop0h 58m

Washington, D.C. Dulles Intl

Wed 8/5

10:26 pm-11:30 pm

Nonstop1h 04m

$339

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Wed 7/29

10:30 am-11:28 am

Nonstop0h 58m

Washington, D.C. Dulles Intl

Sun 8/2

8:35 am-9:40 am

Nonstop1h 05m

$339

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Wed 9/16

11:17 am-5:31 pm

1 stop6h 14m

Washington, D.C. Dulles Intl

Thu 9/17

6:14 am-10:17 am

1 stop4h 03m

$347
Cheapest one-way

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Fri 8/21

4:49 pm-10:55 pm

1 stop6h 06m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/18

Showing 1-10 of 15 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harrisburg-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 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 18, 2026.

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?

Use this chart to determine the cheapest time to fly round-trip from Harrisburg to Dulles Intl. Price data was last updated on July 11, 2026.

Travelers seeking maximum savings on their Harrisburg to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday mornings 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 July 18, 2026.
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
10,006 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,006 reviews
United Airlines
7.4
Good
10,006 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 8 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 58m. 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..

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

    Consider Copa Airlines (93%), Avianca (89%) or CommutAir (87%) 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 $1,208, our data shows the cheapest flight currently is $244. When looking at the most popular route, (Harrisburg - Washington, D.C. Dulles Intl), you can expect to pay $239 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.

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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Manassas
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

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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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$255FlexibilityNo cancel feeOn-time69%

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