There are
2,133 mi
from Chattanooga, TN to Santee, CA
That's the driving distance. It would take 1 day 12 hours to go from Chattanooga, Tennessee to Santee, California.
The flight distance (direct flight from Chattanooga, TN to Santee, CA) is 1,813.81 mi.
2,133 mi = 3.22 kms