There are
1,408 mi
from Port St Lucie, FL to Oshkosh, WI
That's the driving distance. It would take 1 day 2 hours to go from Port St Lucie, Florida to Oshkosh, Wisconsin.
The flight distance (direct flight from Port St Lucie, FL to Oshkosh, WI) is 1,243.60 mi.
1,408 mi = 1.61 kms