There are
1,475 mi
from Rialto, CA to Ottawa, KS
That's the driving distance. It would take 1 day 2 hours to go from Rialto, California to Ottawa, Kansas.
The flight distance (direct flight from Rialto, CA to Ottawa, KS) is 1,265.20 mi.
1,475 mi = 2,373.65 kms