There are
2,003 mi
from Simi Valley, CA to South Elgin, IL
That's the driving distance. It would take 1 day 11 hours to go from Simi Valley, California to South Elgin, Illinois.
The flight distance (direct flight from Simi Valley, CA to South Elgin, IL) is 1,730.21 mi.
2,003 mi = 3.22 kms