There are
2,006 mi
from Simi Valley, CA to Elgin, IL
That's the driving distance. It would take 1 day 11 hours to go from Simi Valley, California to Elgin, Illinois.
The flight distance (direct flight from Simi Valley, CA to Elgin, IL) is 1,731.18 mi.
2,006 mi = 3.22 kms