There are
3,006 mi
from Half Moon Bay, CA to Waterbury, CT
That's the driving distance. It would take 2 days 5 hours to go from Half Moon Bay, California to Waterbury, Connecticut.
The flight distance (direct flight from Half Moon Bay, CA to Waterbury, CT) is 2,611.41 mi.
3,006 mi = 4,838.19 kms