There are
1,539 mi
from Fontana, CA to Mandan, ND
That's the driving distance. It would take 1 day 3 hours to go from Fontana, California to Mandan, North Dakota.
The flight distance (direct flight from Fontana, CA to Mandan, ND) is 1,232.29 mi.
1,539 mi = 1.61 kms