How far is Decatur, IL, from Chattanooga, TN?
The distance between Chattanooga (Chattanooga Metropolitan Airport) and Decatur (Decatur Airport) is 387 miles / 623 kilometers / 337 nautical miles.
The driving distance from Chattanooga (CHA) to Decatur (DEC) is 507 miles / 816 kilometers, and travel time by car is about 9 hours 44 minutes.
Chattanooga Metropolitan Airport – Decatur Airport
Search flights
Distance from Chattanooga to Decatur
There are several ways to calculate the distance from Chattanooga to Decatur. Here are two standard methods:
Vincenty's formula (applied above)- 387.334 miles
- 623.354 kilometers
- 336.584 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- 387.622 miles
- 623.817 kilometers
- 336.834 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 Chattanooga to Decatur?
The estimated flight time from Chattanooga Metropolitan Airport to Decatur Airport is 1 hour and 14 minutes.
What is the time difference between Chattanooga and Decatur?
The time difference between Chattanooga and Decatur is 1 hour. Decatur is 1 hour behind Chattanooga.
Flight carbon footprint between Chattanooga Metropolitan Airport (CHA) and Decatur Airport (DEC)
On average, flying from Chattanooga to Decatur generates about 82 kg of CO2 per passenger, and 82 kilograms equals 181 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Chattanooga to Decatur
See the map of the shortest flight path between Chattanooga Metropolitan Airport (CHA) and Decatur Airport (DEC).
Airport information
| Origin | Chattanooga Metropolitan Airport |
|---|---|
| City: | Chattanooga, TN |
| Country: | United States  |
| IATA Code: | CHA |
| ICAO Code: | KCHA |
| Coordinates: | 35°2′7″N, 85°12′13″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 |