There are
2,578 mi
from Johnson City, TN to Fairfield, CA
That's the driving distance. It would take 1 day 21 hours to go from Johnson City, Tennessee to Fairfield, California.
The flight distance (direct flight from Johnson City, TN to Fairfield, CA) is 2,169.16 mi.
2,578 mi = 4,149.68 kms