There are
2,419 mi
from Chattanooga, TN to Piedmont, CA
That's the driving distance. It would take 1 day 18 hours to go from Chattanooga, Tennessee to Piedmont, California.
The flight distance (direct flight from Chattanooga, TN to Piedmont, CA) is 2,048.06 mi.
2,419 mi = 3,893.35 kms