There are
1,577 mi
from St George, UT to Sycamore, IL
That's the driving distance. It would take 1 day 3 hours to go from St George, Utah to Sycamore, Illinois.
The flight distance (direct flight from St George, UT to Sycamore, IL) is 1,363.34 mi.
1,577 mi = 1.61 kms