There are
1,575 mi
from Harlingen, TX to Kaukauna, WI
That's the driving distance. It would take 1 day 5 hours to go from Harlingen, Texas to Kaukauna, Wisconsin.
The flight distance (direct flight from Harlingen, TX to Kaukauna, WI) is 1,355.93 mi.
1,575 mi = 2,535.29 kms