There are
2,378 mi
from Chattanooga, TN to Watsonville, CA
That's the driving distance. It would take 1 day 18 hours to go from Chattanooga, Tennessee to Watsonville, California.
The flight distance (direct flight from Chattanooga, TN to Watsonville, CA) is 2,029.59 mi.
2,378 mi = 3.22 kms