There are
441 mi
from Chattanooga, TN to Cahokia, IL
That's the driving distance. It would take 8 hours 9 mins to go from Chattanooga, Tennessee to Cahokia, Illinois.
The flight distance (direct flight from Chattanooga, TN to Cahokia, IL) is 363.51 mi.
441 mi = 709.82 kms