There are
2,854 mi
from Simi Valley, CA to Danbury, CT
That's the driving distance. It would take 2 days 3 hours to go from Simi Valley, California to Danbury, Connecticut.
The flight distance (direct flight from Simi Valley, CA to Danbury, CT) is 2,492.91 mi.
2,854 mi = 3.22 kms