There are
1,006 mi
from Rockford, IL to Sulphur, LA
That's the driving distance. It would take 19 hours 21 mins to go from Rockford, Illinois to Sulphur, Louisiana.
The flight distance (direct flight from Rockford, IL to Sulphur, LA) is 864.75 mi.
1,006 mi = 1.61 kms