Miles between South San Francisco, CA and Duncan, OK

There are
1,608 mi
from South San Francisco, CA to Duncan, OK

That's the driving distance. It would take 1 day 4 hours to go from South San Francisco, California to Duncan, Oklahoma.

The flight distance (direct flight from South San Francisco, CA to Duncan, OK) is 1,378.58 mi.

1,608 mi = 2,588.20 kms