How far is Decatur, IL, from Atlanta, GA?
The distance between Atlanta (Hartsfield–Jackson Atlanta International Airport) and Decatur (Decatur Airport) is 493 miles / 794 kilometers / 428 nautical miles.
The driving distance from Atlanta (ATL) to Decatur (DEC) is 624 miles / 1004 kilometers, and travel time by car is about 11 hours 54 minutes.
Hartsfield–Jackson Atlanta International Airport – Decatur Airport
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Distance from Atlanta to Decatur
There are several ways to calculate the distance from Atlanta to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 493.093 miles
- 793.557 kilometers
- 428.486 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- 493.552 miles
- 794.294 kilometers
- 428.885 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 Atlanta to Decatur?
The estimated flight time from Hartsfield–Jackson Atlanta International Airport to Decatur Airport is 1 hour and 26 minutes.
What is the time difference between Atlanta and Decatur?
The time difference between Atlanta and Decatur is 1 hour. Decatur is 1 hour behind Atlanta.
Flight carbon footprint between Hartsfield–Jackson Atlanta International Airport (ATL) and Decatur Airport (DEC)
On average, flying from Atlanta to Decatur generates about 98 kg of CO2 per passenger, and 98 kilograms equals 215 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Atlanta to Decatur
See the map of the shortest flight path between Hartsfield–Jackson Atlanta International Airport (ATL) and Decatur Airport (DEC).
Airport information
| Origin | Hartsfield–Jackson Atlanta International Airport |
|---|---|
| City: | Atlanta, GA |
| Country: | United States  |
| IATA Code: | ATL |
| ICAO Code: | KATL |
| Coordinates: | 33°38′12″N, 84°25′41″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 |