How far is Rockford, IL, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and Rockford (Chicago Rockford International Airport) is 552 miles / 888 kilometers / 480 nautical miles.
The driving distance from Fort Smith (FSM) to Rockford (RFD) is 711 miles / 1145 kilometers, and travel time by car is about 13 hours 2 minutes.
Fort Smith Regional Airport – Chicago Rockford International Airport
Search flights
Distance from Fort Smith to Rockford
There are several ways to calculate the distance from Fort Smith to Rockford. Here are two standard methods:
Vincenty's formula (applied above)- 551.847 miles
- 888.111 kilometers
- 479.542 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- 552.164 miles
- 888.622 kilometers
- 479.817 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 Fort Smith to Rockford?
The estimated flight time from Fort Smith Regional Airport to Chicago Rockford International Airport is 1 hour and 32 minutes.
What is the time difference between Fort Smith and Rockford?
There is no time difference between Fort Smith and Rockford.
Flight carbon footprint between Fort Smith Regional Airport (FSM) and Chicago Rockford International Airport (RFD)
On average, flying from Fort Smith to Rockford generates about 106 kg of CO2 per passenger, and 106 kilograms equals 234 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Fort Smith to Rockford
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Chicago Rockford International Airport (RFD).
Airport information
| Origin | Fort Smith Regional Airport |
|---|---|
| City: | Fort Smith, AR |
| Country: | United States  |
| IATA Code: | FSM |
| ICAO Code: | KFSM |
| Coordinates: | 35°20′11″N, 94°22′2″W |
| Destination | 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 |