There are
2,987 mi
from Danbury, CT to Cupertino, CA
That's the driving distance. It would take 2 days 4 hours to go from Danbury, Connecticut to Cupertino, California.
The flight distance (direct flight from Danbury, CT to Cupertino, CA) is 2,576.35 mi.
2,987 mi = 3.22 kms