There are
1,453 mi
from Duluth, MN to Port Lavaca, TX
That's the driving distance. It would take 1 day 2 hours to go from Duluth, Minnesota to Port Lavaca, Texas.
The flight distance (direct flight from Duluth, MN to Port Lavaca, TX) is 1,279.12 mi.
1,453 mi = 1.61 kms