How far is South Bend, IN, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and South Bend (South Bend International Airport) is 147 miles / 237 kilometers / 128 nautical miles.
The driving distance from Rockford (RFD) to South Bend (SBN) is 176 miles / 283 kilometers, and travel time by car is about 3 hours 31 minutes.
Chicago Rockford International Airport – South Bend International Airport
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Distance from Rockford to South Bend
There are several ways to calculate the distance from Rockford to South Bend. Here are two standard methods:
Vincenty's formula (applied above)- 147.099 miles
- 236.732 kilometers
- 127.825 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- 146.743 miles
- 236.160 kilometers
- 127.516 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 Rockford to South Bend?
The estimated flight time from Chicago Rockford International Airport to South Bend International Airport is 46 minutes.
What is the time difference between Rockford and South Bend?
Flight carbon footprint between Chicago Rockford International Airport (RFD) and South Bend International Airport (SBN)
On average, flying from Rockford to South Bend generates about 47 kg of CO2 per passenger, and 47 kilograms equals 103 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rockford to South Bend
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and South Bend International Airport (SBN).
Airport information
| Origin | Chicago Rockford International Airport |
|---|---|
| City: | Rockford, IL |
| Country: | United States  |
| IATA Code: | RFD |
| ICAO Code: | KRFD |
| Coordinates: | 42°11′43″N, 89°5′49″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 |