Miles between Ontario, CA and Nampa, ID

There are
812 mi
from Ontario, CA to Nampa, ID

That's the driving distance. It would take 15 hours 34 mins to go from Ontario, California to Nampa, Idaho.

The flight distance (direct flight from Ontario, CA to Nampa, ID) is 657.42 mi.

812 mi = 1,307.52 kms