Miles between Ontario, CA and St Peters, MO

There are
1,790 mi
from Ontario, CA to St Peters, MO

That's the driving distance. It would take 1 day 7 hours to go from Ontario, California to St Peters, Missouri.

The flight distance (direct flight from Ontario, CA to St Peters, MO) is 1,532.60 mi.

1,790 mi = 1.61 kms