There are
810 mi
from Danbury, CT to Merrillville, IN
That's the driving distance. It would take 15 hours 2 mins to go from Danbury, Connecticut to Merrillville, Indiana.
The flight distance (direct flight from Danbury, CT to Merrillville, IN) is 718.13 mi.
810 mi = 1,303.37 kms