There are
1,615 mi
from Bolingbrook, IL to St George, UT
That's the driving distance. It would take 1 day 4 hours to go from Bolingbrook, Illinois to St George, Utah.
The flight distance (direct flight from Bolingbrook, IL to St George, UT) is 1,393.13 mi.
1,615 mi = 1.61 kms