There are
2,097 mi
from Downey, CA to Jeffersontown, KY
That's the driving distance. It would take 1 day 12 hours to go from Downey, California to Jeffersontown, Kentucky.
The flight distance (direct flight from Downey, CA to Jeffersontown, KY) is 1,832.93 mi.
2,097 mi = 3,374.01 kms