There are
1,427 mi
from Harlingen, TX to Dubuque, IA
That's the driving distance. It would take 1 day 1 hour to go from Harlingen, Texas to Dubuque, Iowa.
The flight distance (direct flight from Harlingen, TX to Dubuque, IA) is 1,195.05 mi.
1,427 mi = 2,296.59 kms