There are
840 mi
from Chattanooga, TN to Chickasha, OK
That's the driving distance. It would take 14 hours 47 mins to go from Chattanooga, Tennessee to Chickasha, Oklahoma.
The flight distance (direct flight from Chattanooga, TN to Chickasha, OK) is 713.74 mi.
840 mi = 1,351.07 kms