There are
507 mi
from Oshkosh, WI to Farmington, MO
That's the driving distance. It would take 9 hours 30 mins to go from Oshkosh, Wisconsin to Farmington, Missouri.
The flight distance (direct flight from Oshkosh, WI to Farmington, MO) is 442.39 mi.
507 mi = 815.47 kms