There are
2,961 mi
from Waterbury, CT to Walnut Creek, CA
That's the driving distance. It would take 2 days 4 hours to go from Waterbury, Connecticut to Walnut Creek, California.
The flight distance (direct flight from Waterbury, CT to Walnut Creek, CA) is 2,581.58 mi.
2,961 mi = 3.22 kms