There are
2,955 mi
from Danbury, CT to San Leandro, CA
That's the driving distance. It would take 2 days 3 hours to go from Danbury, Connecticut to San Leandro, California.
The flight distance (direct flight from Danbury, CT to San Leandro, CA) is 2,572.47 mi.
2,955 mi = 3.22 kms