There are
2,553 mi
from Johnson City, TN to Oakley, CA
That's the driving distance. It would take 1 day 20 hours to go from Johnson City, Tennessee to Oakley, California.
The flight distance (direct flight from Johnson City, TN to Oakley, CA) is 2,154.31 mi.
2,553 mi = 4,109.08 kms