There are
2,053 mi
from Simi Valley, CA to Libertyville, IL
That's the driving distance. It would take 1 day 12 hours to go from Simi Valley, California to Libertyville, Illinois.
The flight distance (direct flight from Simi Valley, CA to Libertyville, IL) is 1,750.20 mi.
2,053 mi = 3.22 kms