There are
1,499 mi
from San Mateo, CA to Williston, ND
That's the driving distance. It would take 1 day 2 hours to go from San Mateo, California to Williston, North Dakota.
The flight distance (direct flight from San Mateo, CA to Williston, ND) is 1,191.56 mi.
1,499 mi = 2,412.35 kms