There are
1,863 mi
from Simi Valley, CA to Fairview Heights, IL
That's the driving distance. It would take 1 day 9 hours to go from Simi Valley, California to Fairview Heights, Illinois.
The flight distance (direct flight from Simi Valley, CA to Fairview Heights, IL) is 1,621.20 mi.
1,863 mi = 1.61 kms