There are
1,702 mi
from Brownsville, TX to Mandan, ND
That's the driving distance. It would take 1 day 7 hours to go from Brownsville, Texas to Mandan, North Dakota.
The flight distance (direct flight from Brownsville, TX to Mandan, ND) is 1,457.69 mi.
1,702 mi = 1.61 kms