There are
1,609 mi
from Sunnyvale, CA to Mandan, ND
That's the driving distance. It would take 1 day 4 hours to go from Sunnyvale, California to Mandan, North Dakota.
The flight distance (direct flight from Sunnyvale, CA to Mandan, ND) is 1,259.79 mi.
1,609 mi = 1.61 kms