There are
2,918 mi
from Vacaville, CA to Shelton, CT
That's the driving distance. It would take 2 days 3 hours to go from Vacaville, California to Shelton, Connecticut.
The flight distance (direct flight from Vacaville, CA to Shelton, CT) is 2,567.77 mi.
2,918 mi = 3.22 kms