There are
1,770 mi
from St George, UT to Marinette, WI
That's the driving distance. It would take 1 day 7 hours to go from St George, Utah to Marinette, Wisconsin.
The flight distance (direct flight from St George, UT to Marinette, WI) is 1,451.83 mi.
1,770 mi = 1.61 kms