There are
2,179 mi
from Knoxville, TN to Fullerton, CA
That's the driving distance. It would take 1 day 14 hours to go from Knoxville, Tennessee to Fullerton, California.
The flight distance (direct flight from Knoxville, TN to Fullerton, CA) is 1,922.26 mi.
2,179 mi = 3.22 kms