$149 Cheap Flights from Washington (IAD) to Harrisburg (MDT)

View $149 flight on Sun, Aug 24, 2025Opens in a new window

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

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Cheap Flights from Washington to Harrisburg (IAD-MDT)

Prices were available within the past 7 days and start at $149 for one-way flights and $179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Aug 6 - Wed, Aug 13
IAD
Washington
MDT
Harrisburg
$179 Roundtrip, found 1 day ago
$179
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 6 from Washington to Harrisburg, returning Wed, Aug 13, priced at $179 found 1 day ago
United
Wed, Aug 6 - Wed, Aug 13
IAD
Washington
MDT
Harrisburg
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 6 from Washington to Harrisburg, returning Wed, Aug 13, priced at $181 found 1 day ago
United
Tue, Jul 22 - Tue, Jul 29
IAD
Washington
MDT
Harrisburg
$184 Roundtrip, found 22 hours ago
$184
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Jul 22 from Washington to Harrisburg, returning Tue, Jul 29, priced at $184 found 22 hours ago
United
Tue, Jul 22 - Tue, Jul 29
IAD
Washington
MDT
Harrisburg
$186 Roundtrip, found 22 hours ago
$186
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Jul 22 from Washington to Harrisburg, returning Tue, Jul 29, priced at $186 found 22 hours ago
United
Sat, Jul 19 - Wed, Jul 30
IAD
Washington
MDT
Harrisburg
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jul 19 from Washington to Harrisburg, returning Wed, Jul 30, priced at $189 found 1 day ago
United
Tue, Jul 22 - Tue, Jul 29
IAD
Washington
MDT
Harrisburg
$216 Roundtrip, found 22 hours ago
$216
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Jul 22 from Washington to Harrisburg, returning Tue, Jul 29, priced at $216 found 22 hours ago
United
Tue, Jul 22 - Tue, Jul 29
IAD
Washington
MDT
Harrisburg
$217 Roundtrip, found 22 hours ago
$217
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Jul 22 from Washington to Harrisburg, returning Tue, Jul 29, priced at $217 found 22 hours ago
United
Wed, Aug 6 - Wed, Aug 13
IAD
Washington
MDT
Harrisburg
$224 Roundtrip, found 1 day ago
$224
Roundtrip
found 1 day ago
Select United flight, departing Wed, Aug 6 from Washington to Harrisburg, returning Wed, Aug 13, priced at $224 found 1 day ago
American Airlines
Thu, Jul 31 - Mon, Aug 11
IAD
Washington
MDT
Harrisburg
$259 Roundtrip, found 1 day ago
$259
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Jul 31 from Washington to Harrisburg, returning Mon, Aug 11, priced at $259 found 1 day ago
Delta
Wed, Aug 6 - Wed, Aug 13
IAD
Washington
MDT
Harrisburg
$464 Roundtrip, found 1 day ago
$464
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Aug 6 from Washington to Harrisburg, returning Wed, Aug 13, priced at $464 found 1 day ago

Alternative airports near Harrisburg

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

Select flight to Lancaster, PA LNS. Cheapest option available. Average driving time to city center is 48 minutes. Flights from $108
LNS
Lancaster, PA
Cheapest
Average driving time to city center48 min
Flights from $108
0
Flights from Washington (IAD) to Harrisburg (MDT)
Origin airport
Washington Dulles Intl.
Destination airport
Harrisburg Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$179
Distance
93 mi

Washington to Harrisburg Flights

The cheapest times to fly from Washington to Harrisburg

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 Washington to Harrisburg are during the month of August. You can find some of the cheapest flights from Washington to Harrisburg with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Harrisburg

Sunday is one of the best days to book for cheap flights from Washington to Harrisburg: 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 Washington to Harrisburg

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 Washington to Harrisburg in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Washington to Harrisburg 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 Washington to Harrisburg 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT) cost?
Book cheap return tickets starting from $179 from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United flight leaving IAD on July 15 2025 and touching down at MDT. The price was last updated on July 5 2025 and has not changed since.
What is the cheapest month to fly from IAD to MDT?
The cheapest flights from IAD to MDT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
Fly directly from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT) on a United Airlines flight.
What is the cheapest airline that flies from IAD to MDT?
With fares starting at $204 for a one-way flight from IAD to MDT, United is currently the cheapest carrier on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on August 18 2025. Prices were last updated on July 5 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
On average, just 1 direct flight departs each day from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT). Want additional options? Use our filters to find flights with layovers and squeeze in a visit to another city along the way.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
More travelers fly between IAD and MDT at 5 PM than at any other time. Rather go when it's quieter? Try choosing a quieter departure window and you're likely to save on your ticket as well.
What day of the week has the most flights from IAD to MDT?
Friday offers the most flights from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT). Consider taking off on this day and you'll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
Washington Dulles Intl. Airport (IAD)'s first flight to Harrisburg Intl. Airport (MDT) is at approximately 12:35PM UTC-5. With a total journey time of 57m, you'll land at around 1:32PM UTC-5.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
Flights from IAD to MDT have an average travel time of 56 minutes. The total distance between these two airports is 95 mi.
What airline has the least delays from IAD to MDT?
Consider traveling with United Airlines if you'd like to go straight from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT) without any delays. This carrier has the strongest track record for punctuality, with an on-time score of 82%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
Choose a flight from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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 Harrisburg from Washington Dulles Intl. Airport (IAD)?
Catch a direct flight from Washington Dulles Intl. Airport (IAD) to Harrisburg and arrive at Harrisburg Intl. Airport (MDT). An alternative point of entry into this destination is Lancaster Airport (LNS).
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT) last-minute?
Waiting until just before your departure to book a ticket from IAD to MDT generally means paying more. Although you may find some last-minute discounts, they're not always guaranteed. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book an IAD to MDT flight and hotel package?
You'll typically save money by booking an IAD to MDT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your ideal accommodations and flights, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Harrisburg Intl. Airport (MDT)?
If you reserved your IAD to MDT flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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