Miles between St George, UT and Ammon, ID

There are
517 mi
from St George, UT to Ammon, ID

That's the driving distance. It would take 8 hours 35 mins to go from St George, Utah to Ammon, Idaho.

The flight distance (direct flight from St George, UT to Ammon, ID) is 448.51 mi.

517 mi = 831.74 kms