There are
2,904 mi
from Simi Valley, CA to Middletown, CT
That's the driving distance. It would take 2 days 4 hours to go from Simi Valley, California to Middletown, Connecticut.
The flight distance (direct flight from Simi Valley, CA to Middletown, CT) is 2,533.63 mi.
2,904 mi = 3.22 kms