There are
1,580 mi
from Mill Valley, CA to Bismarck, ND
That's the driving distance. It would take 1 day 3 hours to go from Mill Valley, California to Bismarck, North Dakota.
The flight distance (direct flight from Mill Valley, CA to Bismarck, ND) is 1,263.85 mi.
1,580 mi = 2,542.39 kms