Miles between St George, UT and Idaho Falls, ID

There are
515 mi
from St George, UT to Idaho Falls, ID

That's the driving distance. It would take 8 hours 31 mins to go from St George, Utah to Idaho Falls, Idaho.

The flight distance (direct flight from St George, UT to Idaho Falls, ID) is 449.35 mi.

515 mi = 828.13 kms