There are
1,668 mi
from St George, UT to Oshkosh, WI
That's the driving distance. It would take 1 day 5 hours to go from St George, Utah to Oshkosh, Wisconsin.
The flight distance (direct flight from St George, UT to Oshkosh, WI) is 1,392.04 mi.
1,668 mi = 2,684.07 kms