There are
612 mi
from Chattanooga, TN to Lake Zurich, IL
That's the driving distance. It would take 12 hours 1 min to go from Chattanooga, Tennessee to Lake Zurich, Illinois.
The flight distance (direct flight from Chattanooga, TN to Lake Zurich, IL) is 516.37 mi.
612 mi = 985.40 kms