There are
636 mi
from Dubuque, IA to Ashland, KY
That's the driving distance. It would take 11 hours 56 mins to go from Dubuque, Iowa to Ashland, Kentucky.
The flight distance (direct flight from Dubuque, IA to Ashland, KY) is 504.75 mi.
636 mi = 1,023.01 kms