There are
1,433 mi
from Katy, TX to Mandan, ND
That's the driving distance. It would take 1 day 1 hour to go from Katy, Texas to Mandan, North Dakota.
The flight distance (direct flight from Katy, TX to Mandan, ND) is 1,208.35 mi.
1,433 mi = 2,306.18 kms