There are
735 mi
from Oshkosh, WI to Sevierville, TN
That's the driving distance. It would take 13 hours 57 mins to go from Oshkosh, Wisconsin to Sevierville, Tennessee.
The flight distance (direct flight from Oshkosh, WI to Sevierville, TN) is 621.96 mi.
735 mi = 1,183.17 kms