There are
1,582 mi
from Bismarck, ND to Mill Valley, CA
That's the driving distance. It would take 1 day 3 hours to go from Bismarck, North Dakota to Mill Valley, California.
The flight distance (direct flight from Bismarck, ND to Mill Valley, CA) is 1,263.85 mi.
1,582 mi = 2,545.72 kms