There are
749 mi
from Chattanooga, TN to Topeka, KS
That's the driving distance. It would take 13 hours 58 mins to go from Chattanooga, Tennessee to Topeka, Kansas.
The flight distance (direct flight from Chattanooga, TN to Topeka, KS) is 635.35 mi.
749 mi = 1,205.20 kms