There are
2,790 mi
from Rialto, CA to Danbury, CT
That's the driving distance. It would take 2 days 1 hour to go from Rialto, California to Danbury, Connecticut.
The flight distance (direct flight from Rialto, CA to Danbury, CT) is 2,424.67 mi.
2,790 mi = 3.22 kms