There are
1,965 mi
from Simi Valley, CA to Peoria, IL
That's the driving distance. It would take 1 day 10 hours to go from Simi Valley, California to Peoria, Illinois.
The flight distance (direct flight from Simi Valley, CA to Peoria, IL) is 1,652.46 mi.
1,965 mi = 1.61 kms