There are
1,581 mi
from Ontario, CA to Warrensburg, MO
That's the driving distance. It would take 1 day 4 hours to go from Ontario, California to Warrensburg, Missouri.
The flight distance (direct flight from Ontario, CA to Warrensburg, MO) is 1,364.52 mi.
1,581 mi = 2,544.13 kms