There are
2,427 mi
from St George, UT to Boynton Beach, FL
That's the driving distance. It would take 1 day 20 hours to go from St George, Utah to Boynton Beach, Florida.
The flight distance (direct flight from St George, UT to Boynton Beach, FL) is 2,085.63 mi.
2,427 mi = 3.22 kms