There are
631 mi
from Antioch, CA to Milwaukie, OR
That's the driving distance. It would take 12 hours 6 mins to go from Antioch, California to Milwaukie, Oregon.
The flight distance (direct flight from Antioch, CA to Milwaukie, OR) is 515.93 mi.
631 mi = 1,015.94 kms