Miles between Oceanside, CA and Duncan, OK

There are
1,343 mi
from Oceanside, CA to Duncan, OK

That's the driving distance. It would take 23 hours 53 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.

1,343 mi = 1.61 kms