There are
993 mi
from Oshkosh, WI to Mt Kisco, NY
That's the driving distance. It would take 18 hours 45 mins to go from Oshkosh, Wisconsin to Mt Kisco, New York.
The flight distance (direct flight from Oshkosh, WI to Mt Kisco, NY) is 776.93 mi.
993 mi = 1,598.77 kms