Miles between Ontario, CA and Grain Valley, MO

There are
1,604 mi
from Ontario, CA to Grain Valley, MO

That's the driving distance. It would take 1 day 3 hours to go from Ontario, California to Grain Valley, Missouri.

The flight distance (direct flight from Ontario, CA to Grain Valley, MO) is 1,341.93 mi.

1,604 mi = 1.61 kms