How far is Decatur, IL, from Athens, GA?

The distance between Athens (Athens–Ben Epps Airport) and Decatur (Decatur Airport) is 509 miles / 818 kilometers / 442 nautical miles.

The driving distance from Athens (AHN) to Decatur (DEC) is 674 miles / 1085 kilometers, and travel time by car is about 12 hours 58 minutes.

Distance from Athens to Decatur

There are several ways to calculate the distance from Athens to Decatur. Here are two standard methods:

Vincenty's formula (applied above)

• 508.553 miles
• 818.436 kilometers
• 441.920 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

• 508.765 miles
• 818.778 kilometers
• 442.105 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 Athens to Decatur?

The estimated flight time from Athens–Ben Epps Airport to Decatur Airport is 1 hour and 27 minutes.

What is the time difference between Athens and Decatur?

The time difference between Athens and Decatur is 1 hour. Decatur is 1 hour behind Athens.

Flight carbon footprint between Athens–Ben Epps Airport (AHN) and Decatur Airport (DEC)

On average, flying from Athens to Decatur generates about 100 kg of CO2 per passenger, and 100 kilograms equals 220 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Athens to Decatur

See the map of the shortest flight path between Athens–Ben Epps Airport (AHN) and Decatur Airport (DEC).

Airport information

Origin	Athens–Ben Epps Airport
City:	Athens, GA
Country:	United States
IATA Code:	AHN
ICAO Code:	KAHN
Coordinates:	33°56′54″N, 83°19′34″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