Miles between Oceanside, CA and Duncan, OK

There are
1,328 mi
from Oceanside, CA to Duncan, OK

That's the driving distance. It would take 23 hours 42 mins to go from Oceanside, California to Duncan, Oklahoma.

The flight distance (direct flight from Oceanside, CA to Duncan, OK) is 1,116.37 mi.

1,328 mi = 2,136.87 kms