Miles between Simi Valley, CA and Vacaville, CA

There are
397 mi
from Simi Valley, CA to Vacaville, CA

That's the driving distance. It would take 7 hours 25 mins to go from Simi Valley, California to Vacaville, California.

The flight distance (direct flight from Simi Valley, CA to Vacaville, CA) is 334.05 mi.

397 mi = 639.37 kms