There are
1,285 mi
from St George, UT to Warrensburg, MO
That's the driving distance. It would take 22 hours 6 mins to go from St George, Utah to Warrensburg, Missouri.
The flight distance (direct flight from St George, UT to Warrensburg, MO) is 1,085.33 mi.
1,285 mi = 1.61 kms