Miles between Nampa, ID and Simi Valley, CA

There are
818 mi
from Nampa, ID to Simi Valley, CA

That's the driving distance. It would take 15 hours 36 mins to go from Nampa, Idaho to Simi Valley, California.

The flight distance (direct flight from Nampa, ID to Simi Valley, CA) is 651.52 mi.

818 mi = 1,316.46 kms