HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$142+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — IAD
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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

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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. 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 4/222:41 pm
MDT
-
IAD
Nonstop0h 59m
United Airlines
Sat 4/258:35 am
IAD
-
MDT
Nonstop1h 09m
United Airlines
Deal found 3/8$199
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 5/196:15 am
MDT
-
IAD
Nonstop0h 59m
United Airlines
Tue 5/2610:26 pm
IAD
-
MDT
Nonstop1h 04m
United Airlines
Deal found 3/10$219
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Sat 3/212:33 pm
MDT
-
IAD
Nonstop1h 02m
United Airlines
Wed 3/2510:15 pm
IAD
-
MDT
Nonstop0h 58m
United Airlines
Deal found 3/6$229
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/26:15 am
MDT
-
IAD
Nonstop0h 59m
United Airlines
Sun 4/510:25 pm
IAD
-
MDT
Nonstop1h 03m
United Airlines
Deal found 3/10$234
This United Airlines deal was found by Cheapflights users on 3/7. 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 5/196:15 am
MDT
-
IAD
Nonstop0h 59m
United Airlines
Tue 9/18:35 am
IAD
-
MDT
Nonstop1h 01m
United Airlines
Deal found 3/7$259
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Mon 3/236:15 am
MDT
-
IAD
Nonstop1h 03m
United Airlines
Mon 3/308:35 am
IAD
-
MDT
Nonstop1h 09m
United Airlines
Deal found 3/6$274
This United Airlines deal was found by Cheapflights users on 3/10. 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 3/1910:40 am
MDT
-
IAD
Nonstop1h 03m
United Airlines
Sat 3/2112:45 pm
IAD
-
MDT
Nonstop1h 06m
United Airlines
Deal found 3/10$279
This American Airlines deal was found by Cheapflights users on 3/8. 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 4/224:59 pm
MDT
-
IAD
1 stop7h 00m
American Airlines
Sat 4/256:25 am
IAD
-
MDT
1 stop4h 32m
American Airlines
Deal found 3/8$308
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/246:15 am
MDT
-
IAD
Nonstop1h 03m
United Airlines
Sat 3/2810:15 pm
IAD
-
MDT
Nonstop0h 58m
United Airlines
Deal found 3/9$309
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/610:40 am
MDT
-
IAD
Nonstop0h 59m
United Airlines
Mon 4/138:35 am
IAD
-
MDT
Nonstop1h 09m
United Airlines
Deal found 3/9$323
This United Airlines deal was found by Cheapflights users on 3/7. 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 5/172:40 pm
MDT
-
IAD
Nonstop0h 59m
United Airlines
Wed 9/21:00 pm
IAD
-
MDT
Nonstop1h 03m
United Airlines
Deal found 3/7$339
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1910:13 pm
MDT
-
IAD
1 stop9h 11m
Frontier
Sat 3/218:09 am
IAD
-
MDT
1 stop13h 14m
Frontier
Deal found 3/10$356

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$199
(United Airlines)

One-way from

$142
(Kiwi.com)
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 March 10, 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

Wed 5/20

6:15 am-7:14 am

Nonstop0h 59m

Washington, D.C. Dulles Intl

Wed 9/2

8:35 am-9:36 am

Nonstop1h 01m

$199

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Wed 4/22

2:41 pm-3:40 pm

Nonstop0h 59m

Washington, D.C. Dulles Intl

Sat 4/25

8:35 am-9:44 am

Nonstop1h 09m

$199

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 4/25

2:41 pm-3:40 pm

Nonstop0h 59m

Washington, D.C. Dulles Intl

Tue 4/28

8:35 am-9:44 am

Nonstop1h 09m

$259

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Mon 3/23

6:15 am-7:18 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

Mon 3/30

8:35 am-9:44 am

Nonstop1h 09m

$274

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Tue 3/24

6:15 am-7:18 am

Nonstop1h 03m

Washington, D.C. Dulles Intl

Sat 3/28

10:15 pm-11:13 pm

Nonstop0h 58m

$309
Quickest round-trip

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sun 5/17

2:40 pm-3:39 pm

Nonstop0h 59m

Washington, D.C. Dulles Intl

Mon 8/31

10:26 pm-11:25 pm

Nonstop0h 59m

$339

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Tue 4/21

6:45 pm-11:06 pm

1 stop4h 21m

Washington, D.C. Dulles Intl

Wed 4/22

9:19 am-2:52 pm

1 stop5h 33m

$387

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 5/23

6:30 am-12:45 am

1 stop18h 15m

Washington, D.C. Dulles Intl

Thu 9/3

8:35 am-9:36 am

Nonstop1h 01m

$410
Cheapest one-way

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sun 5/24

10:25 am-5:28 pm

1 stop7h 03m

$142

HarrisburgWashington, D.C.

MDT - IAD

MDTIAD

Harrisburg

Sat 5/23

6:12 pm-9:50 am

1 stop15h 38m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

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 March.
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 March 10, 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 49% 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 February 21, 2026.

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. 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 March 10, 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
9,409 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

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
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Crew

8.1

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 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 59m. 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 Lufthansa (75%), CommutAir (74%) or United Airlines (74%) 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 $1,144, our data shows the cheapest flight currently is $141. When looking at the most popular route, (Harrisburg - Washington, D.C. Dulles Intl), you can expect to pay $279 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

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.

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$255FlexibilityNo 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.
Site
©2026 Cheapflights