There are
1,935 mi
from Simi Valley, CA to Carbondale, IL
That's the driving distance. It would take 1 day 10 hours to go from Simi Valley, California to Carbondale, Illinois.
The flight distance (direct flight from Simi Valley, CA to Carbondale, IL) is 1,662.77 mi.
1,935 mi = 1.61 kms