There are
1,571 mi
from San Clemente, CA to Williston, ND
That's the driving distance. It would take 1 day 3 hours to go from San Clemente, California to Williston, North Dakota.
The flight distance (direct flight from San Clemente, CA to Williston, ND) is 1,248.85 mi.
1,571 mi = 2,527.65 kms