How far is Fort Smith, AR, from Rockford, IL?
The distance between Rockford (Chicago Rockford International Airport) and Fort Smith (Fort Smith Regional Airport) is 552 miles / 888 kilometers / 480 nautical miles.
The driving distance from Rockford (RFD) to Fort Smith (FSM) is 709 miles / 1141 kilometers, and travel time by car is about 13 hours 2 minutes.
Chicago Rockford International Airport – Fort Smith Regional Airport
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Distance from Rockford to Fort Smith
There are several ways to calculate the distance from Rockford to Fort Smith. 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 Rockford to Fort Smith?
The estimated flight time from Chicago Rockford International Airport to Fort Smith Regional Airport is 1 hour and 32 minutes.
What is the time difference between Rockford and Fort Smith?
There is no time difference between Rockford and Fort Smith.
Flight carbon footprint between Chicago Rockford International Airport (RFD) and Fort Smith Regional Airport (FSM)
On average, flying from Rockford to Fort Smith 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 Rockford to Fort Smith
See the map of the shortest flight path between Chicago Rockford International Airport (RFD) and Fort Smith Regional Airport (FSM).
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 | 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 |