Miles between Dubuque, IA and Portage, MI

There are
325 mi
from Dubuque, IA to Portage, MI

That's the driving distance. It would take 6 hours 39 mins to go from Dubuque, Iowa to Portage, Michigan.

The flight distance (direct flight from Dubuque, IA to Portage, MI) is 260.41 mi.

325 mi = 522.38 kms