There are
2,409 mi
from Hayward, CA to Danville, KY
That's the driving distance. It would take 1 day 18 hours to go from Hayward, California to Danville, Kentucky.
The flight distance (direct flight from Hayward, CA to Danville, KY) is 2,026.99 mi.
2,409 mi = 3.22 kms