There are
2,081 mi
from Irvine, CA to Louisville, KY
That's the driving distance. It would take 1 day 12 hours to go from Irvine, California to Louisville, Kentucky.
The flight distance (direct flight from Irvine, CA to Louisville, KY) is 1,809.79 mi.
2,081 mi = 3,349.47 kms