There are
2,287 mi
from Downey, CA to Johnson City, TN
That's the driving distance. It would take 1 day 15 hours to go from Downey, California to Johnson City, Tennessee.
The flight distance (direct flight from Downey, CA to Johnson City, TN) is 2,017.07 mi.
2,287 mi = 3,680.17 kms