There are
2,948 mi
from Hayward, CA to Mt Kisco, NY
That's the driving distance. It would take 2 days 3 hours to go from Hayward, California to Mt Kisco, New York.
The flight distance (direct flight from Hayward, CA to Mt Kisco, NY) is 2,558.60 mi.
2,948 mi = 3.22 kms