There are
1,319 mi
from St George, UT to Boone, IA
That's the driving distance. It would take 22 hours 51 mins to go from St George, Utah to Boone, Iowa.
The flight distance (direct flight from St George, UT to Boone, IA) is 1,100.69 mi.
1,319 mi = 1.61 kms