Cheap Flights from Decatur (DEC) to Harrisburg (MDT)

Popular airlines from Decatur, IL (DEC) to Harrisburg Intl. Airport (MDT)

Cheap Flights from Decatur to Harrisburg (DEC-MDT)

Prices were available within the past 7 days and start at for one-way flights and $410 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Sep 29 - Wed, Oct 8
DEC
Decatur
MDT
Harrisburg
$410 Roundtrip, found 5 days ago
$410
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 29 from Decatur to Harrisburg, returning Wed, Oct 8, priced at $410 found 5 days ago
United
Sun, Sep 28 - Wed, Oct 8
DEC
Decatur
MDT
Harrisburg
$496 Roundtrip, found 5 days ago
$496
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 28 from Decatur to Harrisburg, returning Wed, Oct 8, priced at $496 found 5 days ago
United
Sun, Sep 28 - Sun, Oct 5
DEC
Decatur
MDT
Harrisburg
$526 Roundtrip, found 5 days ago
$526
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 28 from Decatur to Harrisburg, returning Sun, Oct 5, priced at $526 found 5 days ago
United
Sun, Sep 28 - Fri, Oct 3
DEC
Decatur
MDT
Harrisburg
$622 Roundtrip, found 5 days ago
$622
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 28 from Decatur to Harrisburg, returning Fri, Oct 3, priced at $622 found 5 days ago

Frequently asked questions

How much does a flight from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT) cost?
Get a cheap one-way flight or cheap return flight from $410 from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT)?
September is the cheapest month to fly from DEC to MDT. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest DEC to MDT flight.
How many flights per day from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT)?
You'll have to hop on a flight with a layover if you're traveling from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from DEC to MDT?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT)?
Choose a flight from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this 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.
Is it cheaper to buy a plane ticket from Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT) last-minute?
Booking your ticket from DEC to MDT just before your getaway is generally more expensive. But if you're flexible with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a DEC to MDT flight and hotel package?
Securing a DEC to MDT flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our impressive range of stays 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 Decatur Airport (DEC) to Harrisburg Intl. Airport (MDT)?
If you reserved your DEC to MDT flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. 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.

Travel information

Travel information

Origin airport
Decatur
Destination airport
Harrisburg Intl.
Roundtrip price
$410
Distance
641 mi

Book with confidence

Book with confidence

Decatur to Harrisburg Flights

The cheapest times to fly from Decatur 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 Decatur to Harrisburg are during the month of September. You can find some of the cheapest flights from Decatur to Harrisburg with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Decatur to Harrisburg

Sunday is one of the best days to book for cheap flights from Decatur 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 Decatur 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 Decatur to Harrisburg in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Decatur 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 Decatur 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.

 

Decatur to Harrisburg Flights

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*Available to One Key members.