There are
1,221 mi
from Rowlett, TX to Port Huron, MI
That's the driving distance. It would take 22 hours 9 mins to go from Rowlett, Texas to Port Huron, Michigan.
The flight distance (direct flight from Rowlett, TX to Port Huron, MI) is 1,035.41 mi.
1,221 mi = 1,965.49 kms