$134 Cheap Flights from Harrisburg (MDT) to Washington (IAD)

View $134 flight on Sat, Dec 13, 2025Opens in a new window

Popular airlines from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Harrisburg to Washington (MDT-IAD)

Prices were available within the past 7 days and start at $134 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Dec 25 - Wed, Jan 14
MDT
Harrisburg
IAD
Washington
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 25 from Harrisburg to Washington, returning Wed, Jan 14, priced at $179 found 3 days ago
United
Fri, Oct 10 - Fri, Oct 17
MDT
Harrisburg
IAD
Washington
$184 Roundtrip, found 10 hours ago
$184
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Oct 10 from Harrisburg to Washington, returning Fri, Oct 17, priced at $184 found 10 hours ago
United
Fri, Oct 10 - Sun, Oct 12
MDT
Harrisburg
IAD
Washington
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 10 from Harrisburg to Washington, returning Sun, Oct 12, priced at $189 found 1 day ago
American Airlines
Wed, Dec 3 - Wed, Dec 10
MDT
Harrisburg
IAD
Washington
$199 Roundtrip, found 2 days ago
$199
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Dec 3 from Harrisburg to Washington, returning Wed, Dec 10, priced at $199 found 2 days ago
United
Tue, Oct 7 - Wed, Oct 15
MDT
Harrisburg
IAD
Washington
$199 Roundtrip, found 12 hours ago
$199
Roundtrip
found 12 hours ago
Select United flight, departing Tue, Oct 7 from Harrisburg to Washington, returning Wed, Oct 15, priced at $199 found 12 hours ago
United
Fri, Oct 3 - Sun, Oct 5
MDT
Harrisburg
IAD
Washington
$209 Roundtrip, found 4 days ago
$209
Roundtrip
found 4 days ago
Select United flight, departing Fri, Oct 3 from Harrisburg to Washington, returning Sun, Oct 5, priced at $209 found 4 days ago
United
Tue, Oct 7 - Tue, Oct 14
MDT
Harrisburg
IAD
Washington
$224 Roundtrip, found 3 days ago
$224
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 7 from Harrisburg to Washington, returning Tue, Oct 14, priced at $224 found 3 days ago
United
Sat, Dec 13 - Sun, Dec 28
MDT
Harrisburg
IAD
Washington
$239 Roundtrip, found 8 hours ago
$239
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Dec 13 from Harrisburg to Washington, returning Sun, Dec 28, priced at $239 found 8 hours ago
United
Tue, Nov 25 - Fri, Nov 28
MDT
Harrisburg
IAD
Washington
$244 Roundtrip, found 4 days ago
$244
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 25 from Harrisburg to Washington, returning Fri, Nov 28, priced at $244 found 4 days ago
Delta
Wed, Dec 3 - Wed, Dec 10
MDT
Harrisburg
IAD
Washington
$477 Roundtrip, found 2 days ago
$477
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 3 from Harrisburg to Washington, returning Wed, Dec 10, priced at $477 found 2 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $244
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $244

Frequently asked questions

How much does a flight from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $134 or cheap return flight from $179 from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from MDT to IAD is December, when demand is low. Off-peak months are generally when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
Hop on a nonstop flight with United Airlines and fly straight from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD).
What is the cheapest airline that flies from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline that'll fly you from MDT to IAD, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
On average, Harrisburg Intl. Airport (MDT) only has 1 nonstop flight to Washington Dulles Intl. Airport (IAD) each day. For additional options, try our easy-to-use filters. Simply enter your preferred travel dates, then select "1 Stop" or "2+ Stops" to discover flights offering layovers.
What are the most popular departure times for flights from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
More people fly between MDT and IAD at 6 AM than at any other time. Looking for a quieter experience? Travel outside of rush hours and you could save on your ticket as well.
What day of the week has the most flights from MDT to IAD?
If you jet off on a Friday, you'll get the widest range of options for flights from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
The earliest flight taking off from Harrisburg Intl. Airport (MDT) is at around 6:06AM UTC-5. Board this flight and you'll reach Washington Dulles Intl. Airport (IAD) at approximately 7:08AM UTC-5. The overall travel time is 1h 2m.
How long does it take to fly from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
The average flight time from MDT to IAD is 1 hour and 1 minute, covering a distance of 95 mi.
What airline has the least delays from MDT to IAD?
Consider traveling with Lufthansa if you'd like to go straight from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD) without any holdups. This carrier has the strongest track record for punctuality, with an on-time score of 100%. Want to be notified if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
Book a flight from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Harrisburg Intl. Airport (MDT)?
Washington Dulles Intl. Airport (IAD) is the only airport in Washington with direct flights from Harrisburg Intl. Airport (MDT). Check out the options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from MDT to IAD right before your journey is typically more expensive. But if there's some wiggle room with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a MDT to IAD flight and hotel package?
Securing a MDT to IAD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our wide range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Harrisburg Intl. Airport (MDT) to Washington Dulles Intl. Airport (IAD)?
In most instances, you can cancel or modify your MDT to IAD flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Harrisburg Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$179
Distance
93 mi
Average flight time
1 hour 2 mins

Book with confidence

Book with confidence

Harrisburg to Washington Flights

The cheapest times to fly from Harrisburg to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Harrisburg to Washington are during the month of December. You can find some of the cheapest flights from Harrisburg to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Harrisburg to Washington

Sunday is one of the best days to book for cheap flights from Harrisburg to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Harrisburg to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Harrisburg to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Harrisburg to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Harrisburg to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Harrisburg to Washington Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.