Miles between Union City, CA and Duncan, OK

There are
1,600 mi
from Union City, CA to Duncan, OK

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

The flight distance (direct flight from Union City, CA to Duncan, OK) is 1,358.65 mi.

1,600 mi = 1.61 kms