There are
2,280 mi
from Oceanside, CA to Greeneville, TN
That's the driving distance. It would take 1 day 15 hours to go from Oceanside, California to Greeneville, Tennessee.
The flight distance (direct flight from Oceanside, CA to Greeneville, TN) is 1,963.31 mi.
2,280 mi = 3.22 kms