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Cheap flights from Harrisburg to Decatur from $440

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Harrisburg to Decatur departing on 12/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Harrisburg to Decatur

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:31 pm - 8:46 am
MDT
-
DEC
16h 15m
1 stop
United Airlines Logo
9:42 am - 4:50 pm
DEC
-
MDT
6h 08m
1 stop
$440United Airlines
Sat, Dec 12 - Wed, Dec 16
United Airlines Logo
6:00 am - 5:51 pm
MDT
-
DEC
12h 51m
2 stops
United Airlines Logo
9:42 am - 4:50 pm
DEC
-
MDT
6h 08m
1 stop
$450United Airlines
Sat, Dec 12 - Wed, Dec 16
United Airlines Logo
10:35 am - 5:51 pm
MDT
-
DEC
8h 16m
2 stops
United Airlines Logo
9:42 am - 6:28 pm
DEC
-
MDT
7h 46m
2 stops
$746United Airlines
Sat, Dec 12 - Wed, Dec 16

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United Airlines flights from Harrisburg to Decatur, Illinois

Our best United Airlines deals on Harrisburg to Decatur, Illinois flight tickets
United Airlines
Dec 12
MDT5:31 pmHarrisburg
16h 15m
1 stop
DEC8:46 amDecatur Arpt
Dec 16
DEC9:42 amDecatur Arpt
6h 08m
1 stop
MDT4:50 pmHarrisburg
$440
United Airlines
Dec 12
MDT6:00 amHarrisburg
12h 51m
2 stops
DEC5:51 pmDecatur Arpt
Dec 16
DEC9:42 amDecatur Arpt
6h 08m
1 stop
MDT4:50 pmHarrisburg
$450
United Airlines
Dec 12
MDT10:35 amHarrisburg
8h 16m
2 stops
DEC5:51 pmDecatur Arpt
Dec 16
DEC9:42 amDecatur Arpt
7h 46m
2 stops
MDT6:28 pmHarrisburg
$746

momondo Fare Finder

 
Customize your flight search to find flights from Harrisburg to Decatur, Illinois 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, momondo users made 832,500 searches. Data last updated June 25, 2026.
Use the filters below to find and compare flights from Harrisburg to Decatur, Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarrisburgDecatur

MDT - DEC

MDTDEC

Harrisburg

Sat 12/12

5:31 pm-8:46 am

1 stop16h 15m

Decatur Arpt

Wed 12/16

9:42 am-4:50 pm

1 stop6h 08m

$440

HarrisburgDecatur

MDT - DEC

MDTDEC

Harrisburg

Sat 12/12

6:00 am-5:51 pm

2 stops12h 51m

Decatur Arpt

Wed 12/16

9:42 am-4:50 pm

1 stop6h 08m

$450
Quickest round-trip

HarrisburgDecatur

MDT - DEC

MDTDEC

Harrisburg

Sat 12/12

10:35 am-5:51 pm

2 stops8h 16m

Decatur Arpt

Wed 12/16

9:42 am-6:28 pm

2 stops7h 46m

$746

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Harrisburg to Decatur, Illinois

Are you open to changing your travel dates? Check out the ideal times to fly from Harrisburg to Decatur, Illinois according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Harrisburg to Decatur, Illinois (MDT to DEC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Harrisburg to Decatur, Illinois

Fastest flight time

16h 15m

Direct flights

None
The fastest flight from Harrisburg to Decatur, Illinois takes 16h 15m
There are no direct flights from Harrisburg to Decatur, Illinois. There are no popular flight routes from Harrisburg to Decatur, Illinois.
Search flight deals

Frequently asked questions about flying from Harrisburg to Decatur, Illinois

  • How far is Harrisburg to Decatur Arpt by plane?

    Harrisburg and Decatur Arpt are 638.1 mi apart from one another. By plane, this route typically takes 16h 15m.

  • When did momondo last update prices for flights from Harrisburg Airport to Decatur Arpt Airport?

    Prices for flights from Harrisburg Airport to Decatur Arpt Airport refresh daily.

  • How old do you have to be to fly from Harrisburg Airport to Decatur Arpt Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Harrisburg Airport to Decatur Arpt Airport.

  • What documentation or ID do you need to fly to Decatur Arpt Airport?

    The necessary travel and health documents for your Decatur Arpt Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Harrisburg to Decatur, Illinois

  • How do I get Price Alerts for flights from Harrisburg to Decatur, Illinois?

    Confirm your travel details to search for the latest offers for flights from Harrisburg to Decatur, Illinois. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Harrisburg to Decatur, Illinois with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Effingham
Mattoon
Forsyth

Why use momondo?

Why should I use momondo to find a flight deal from Harrisburg to Decatur?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harrisburg to Decatur for you.

Can I find flights from Harrisburg to Decatur with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Decatur from Harrisburg with this policy.

How can momondo help me find flights from Harrisburg to Decatur?

momondo provides multiple filters to help you find the best flight to Decatur from Harrisburg. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Harrisburg to Decatur right now. Can momondo alert me if prices change?

Price alerts on flights to Decatur from Harrisburg are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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