There are
980 mi
from Oshkosh, WI to Mamaroneck, NY
That's the driving distance. It would take 18 hours 27 mins to go from Oshkosh, Wisconsin to Mamaroneck, New York.
The flight distance (direct flight from Oshkosh, WI to Mamaroneck, NY) is 782.72 mi.
980 mi = 1,576.93 kms