There are
1,618 mi
from Bismarck, ND to Cayce, SC
That's the driving distance. It would take 1 day 5 hours to go from Bismarck, North Dakota to Cayce, South Carolina.
The flight distance (direct flight from Bismarck, ND to Cayce, SC) is 1,358.13 mi.
1,618 mi = 2,604.38 kms