There are
1,635 mi
from Lansing, IL to St George, UT
That's the driving distance. It would take 1 day 4 hours to go from Lansing, Illinois to St George, Utah.
The flight distance (direct flight from Lansing, IL to St George, UT) is 1,419.70 mi.
1,635 mi = 2,630.87 kms