There are
507 mi
from Chattanooga, TN to Champaign, IL
That's the driving distance. It would take 9 hours 19 mins to go from Chattanooga, Tennessee to Champaign, Illinois.
The flight distance (direct flight from Chattanooga, TN to Champaign, IL) is 385.37 mi.
507 mi = 816.16 kms