There are
587 mi
from Chattanooga, TN to Elmhurst, IL
That's the driving distance. It would take 11 hours 25 mins to go from Chattanooga, Tennessee to Elmhurst, Illinois.
The flight distance (direct flight from Chattanooga, TN to Elmhurst, IL) is 494.40 mi.
587 mi = 944.02 kms