There are
1,607 mi
from Bismarck, ND to Simi Valley, CA
That's the driving distance. It would take 1 day 4 hours to go from Bismarck, North Dakota to Simi Valley, California.
The flight distance (direct flight from Bismarck, ND to Simi Valley, CA) is 1,276.34 mi.
1,607 mi = 2,586.69 kms