There are
938 mi
from Danbury, CT to Mequon, WI
That's the driving distance. It would take 17 hours 42 mins to go from Danbury, Connecticut to Mequon, Wisconsin.
The flight distance (direct flight from Danbury, CT to Mequon, WI) is 752.44 mi.
938 mi = 1,509.37 kms