There are
1,136 mi
from Duluth, MN to North Richland Hills, TX
That's the driving distance. It would take 20 hours 8 mins to go from Duluth, Minnesota to North Richland Hills, Texas.
The flight distance (direct flight from Duluth, MN to North Richland Hills, TX) is 1,001.13 mi.
1,136 mi = 1.61 kms