There are
795 mi
from Chattanooga, TN to Ankeny, IA
That's the driving distance. It would take 15 hours 9 mins to go from Chattanooga, Tennessee to Ankeny, Iowa.
The flight distance (direct flight from Chattanooga, TN to Ankeny, IA) is 643.59 mi.
795 mi = 1,279.22 kms