There are
1,657 mi
from Brownsville, TX to Duluth, MN
That's the driving distance. It would take 1 day 5 hours to go from Brownsville, Texas to Duluth, Minnesota.
The flight distance (direct flight from Brownsville, TX to Duluth, MN) is 1,473.04 mi.
1,657 mi = 1.61 kms