There are
849 mi
from Champaign, IL to Sulphur, LA
That's the driving distance. It would take 16 hours 37 mins to go from Champaign, Illinois to Sulphur, Louisiana.
The flight distance (direct flight from Champaign, IL to Sulphur, LA) is 741.29 mi.
849 mi = 1,366.72 kms