There are
1,608 mi
from Rancho Cordova, CA to Duncan, OK
That's the driving distance. It would take 1 day 4 hours to go from Rancho Cordova, California to Duncan, Oklahoma.
The flight distance (direct flight from Rancho Cordova, CA to Duncan, OK) is 1,322.41 mi.
1,608 mi = 2,587.14 kms