There are
942 mi
from Sioux City, IA to Lumberton, TX
That's the driving distance. It would take 18 hours 15 mins to go from Sioux City, Iowa to Lumberton, Texas.
The flight distance (direct flight from Sioux City, IA to Lumberton, TX) is 854.03 mi.
942 mi = 1,515.76 kms