There are
2,557 mi
from Johnson City, TN to Antioch, CA
That's the driving distance. It would take 1 day 21 hours to go from Johnson City, Tennessee to Antioch, California.
The flight distance (direct flight from Johnson City, TN to Antioch, CA) is 2,159.28 mi.
2,557 mi = 4,115.05 kms