How far is South Bend, IN, from Decatur, IL?
The distance between Decatur (Decatur Airport) and South Bend (South Bend International Airport) is 186 miles / 299 kilometers / 162 nautical miles.
The driving distance from Decatur (DEC) to South Bend (SBN) is 235 miles / 379 kilometers, and travel time by car is about 4 hours 40 minutes.
Decatur Airport – South Bend International Airport
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Distance from Decatur to South Bend
There are several ways to calculate the distance from Decatur to South Bend. Here are two standard methods:
Vincenty's formula (applied above)- 185.981 miles
- 299.308 kilometers
- 161.613 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- 185.855 miles
- 299.105 kilometers
- 161.504 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 Decatur to South Bend?
The estimated flight time from Decatur Airport to South Bend International Airport is 51 minutes.
What is the time difference between Decatur and South Bend?
The time difference between Decatur and South Bend is 1 hour. South Bend is 1 hour ahead of Decatur.
Flight carbon footprint between Decatur Airport (DEC) and South Bend International Airport (SBN)
On average, flying from Decatur to South Bend generates about 52 kg of CO2 per passenger, and 52 kilograms equals 115 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Decatur to South Bend
See the map of the shortest flight path between Decatur Airport (DEC) and South Bend International Airport (SBN).
Airport information
| Origin | Decatur Airport |
|---|---|
| City: | Decatur, IL |
| Country: | United States  |
| IATA Code: | DEC |
| ICAO Code: | KDEC |
| Coordinates: | 39°50′4″N, 88°51′56″W |
| Destination | South Bend International Airport |
|---|---|
| City: | South Bend, IN |
| Country: | United States |
| IATA Code: | SBN |
| ICAO Code: | KSBN |
| Coordinates: | 41°42′31″N, 86°19′2″W |