Route guide · 94 miles
Cheap Flights from Washington to Harrisburg
IAD → MDT · Nonstop 0h 41m · Live round-trip fares
Looking for cheap flights from Washington to Harrisburg? You're in the right place. Airfare Deal tracks live fares on this 94-mile route around the clock. As a rule of thumb, booking 2–4 weeks ahead lands the best prices — and a free fare alert means you never have to keep refreshing the page.
Live fares for IAD → MDT are updating. Use the search below for real-time prices.
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Flight time
0h 41m
Nonstop, typical
Distance
94 mi
IAD → MDT
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
United Airlines
Nonstop flights from Washington to Harrisburg
Nonstop flights from Washington to Harrisburg are flown by United Airlines. The 94-mile trip takes about 0h 41m gate to gate, and nonstops are usually cheapest when booked 2–4 weeks ahead.
Booking insights: Washington → Harrisburg
- Distance: 94 miles · nonstop flight time: 0h 41m.
- Fares tend to bottom out when you book about 2–4 weeks ahead — earlier than that rarely helps, later usually hurts.
- Midweek departures (Tue–Thu) are consistently cheaper than weekend flights.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
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Flying from Washington to Harrisburg: what you need to know
The flight
At 94 miles, IAD to MDT is one of those quick up-and-down flights: roughly 0h 41m nonstop. There's no meal service to plan around — the decisions that matter here are departure time and which airport entrance traffic is kinder to you.
Airlines on this route
United Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from Washington (IAD)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our Washington airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Harrisburg (MDT)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Harrisburg airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Harrisburg to Washington fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 94 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 0h 41m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
Washington to Harrisburg flight FAQs
How long is the flight from IAD to MDT?
A nonstop from IAD to MDT clocks in at around 0h 41m for the 94-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from Washington to Harrisburg?
United Airlines typically operate nonstop flights from IAD to MDT. Nonstops are usually cheapest when booked 2–4 weeks ahead of departure.
What is the cheapest month to fly from Washington to Harrisburg?
Fares from Washington to Harrisburg tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from IAD to MDT?
Book inside the final week and you'll usually pay a premium on IAD to MDT. Fares booked 2–4 weeks ahead are almost always kinder.
What is a good round-trip deal from Washington to Harrisburg?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from Washington to Harrisburg?
You'll mainly see United Airlines on Washington to Harrisburg. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to Washington airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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