There are
995 mi
from Elgin, IL to Opelousas, LA
That's the driving distance. It would take 18 hours 25 mins to go from Elgin, Illinois to Opelousas, Louisiana.
The flight distance (direct flight from Elgin, IL to Opelousas, LA) is 822.29 mi.
995 mi = 1,602.10 kms