How far is Decatur, IL, from Harrisburg, PA?
The distance between Harrisburg (Harrisburg International Airport) and Decatur (Decatur Airport) is 642 miles / 1033 kilometers / 558 nautical miles.
The driving distance from Harrisburg (MDT) to Decatur (DEC) is 722 miles / 1162 kilometers, and travel time by car is about 13 hours 53 minutes.
Harrisburg International Airport – Decatur Airport
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Distance from Harrisburg to Decatur
There are several ways to calculate the distance from Harrisburg to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 642.012 miles
- 1033.218 kilometers
- 557.893 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 640.410 miles
- 1030.640 kilometers
- 556.501 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from Harrisburg to Decatur?
The estimated flight time from Harrisburg International Airport to Decatur Airport is 1 hour and 42 minutes.
What is the time difference between Harrisburg and Decatur?
The time difference between Harrisburg and Decatur is 1 hour. Decatur is 1 hour behind Harrisburg.
Flight carbon footprint between Harrisburg International Airport (MDT) and Decatur Airport (DEC)
On average, flying from Harrisburg to Decatur generates about 118 kg of CO2 per passenger, and 118 kilograms equals 260 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Harrisburg to Decatur
See the map of the shortest flight path between Harrisburg International Airport (MDT) and Decatur Airport (DEC).
Airport information
| Origin | Harrisburg International Airport |
|---|---|
| City: | Harrisburg, PA |
| Country: | United States  |
| IATA Code: | MDT |
| ICAO Code: | KMDT |
| Coordinates: | 40°11′36″N, 76°45′48″W |
| Destination | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |