There are
2,279 mi
from Johnson City, TN to Fullerton, CA
That's the driving distance. It would take 1 day 15 hours to go from Johnson City, Tennessee to Fullerton, California.
The flight distance (direct flight from Johnson City, TN to Fullerton, CA) is 2,006.80 mi.
2,279 mi = 3,667.85 kms