There are
1,580 mi
from St George, UT to Ridgeland, MS
That's the driving distance. It would take 1 day 5 hours to go from St George, Utah to Ridgeland, Mississippi.
The flight distance (direct flight from St George, UT to Ridgeland, MS) is 1,365.49 mi.
1,580 mi = 1.61 kms