There are
2,979 mi
from Danbury, CT to Menlo Park, CA
That's the driving distance. It would take 2 days 4 hours to go from Danbury, Connecticut to Menlo Park, California.
The flight distance (direct flight from Danbury, CT to Menlo Park, CA) is 2,580.66 mi.
2,979 mi = 3.22 kms