There are
2,899 mi
from Walnut Creek, CA to Yonkers, NY
That's the driving distance. It would take 2 days 2 hours to go from Walnut Creek, California to Yonkers, New York.
The flight distance (direct flight from Walnut Creek, CA to Yonkers, NY) is 2,546.88 mi.
2,899 mi = 4,665.69 kms