There are
875 mi
from Bowie, MD to Oshkosh, WI
That's the driving distance. It would take 16 hours 33 mins to go from Bowie, Maryland to Oshkosh, Wisconsin.
The flight distance (direct flight from Bowie, MD to Oshkosh, WI) is 699.44 mi.
875 mi = 1,408.56 kms