There are
1,770 mi
from Rialto, CA to Chesterfield, MO
That's the driving distance. It would take 1 day 7 hours to go from Rialto, California to Chesterfield, Missouri.
The flight distance (direct flight from Rialto, CA to Chesterfield, MO) is 1,517.46 mi.
1,770 mi = 1.61 kms