Miles between Rialto, CA and Duncan, OK

There are
1,275 mi
from Rialto, CA to Duncan, OK

That's the driving distance. It would take 22 hours 38 mins to go from Rialto, California to Duncan, Oklahoma.

The flight distance (direct flight from Rialto, CA to Duncan, OK) is 1,106.59 mi.

1,275 mi = 1.61 kms