Miles between Ontario, CA and Ammon, ID

There are
867 mi
from Ontario, CA to Ammon, ID

That's the driving distance. It would take 14 hours 52 mins to go from Ontario, California to Ammon, Idaho.

The flight distance (direct flight from Ontario, CA to Ammon, ID) is 717.98 mi.

867 mi = 1,395.68 kms