Miles between Stamford, CT and Portsmouth, OH

There are
665 mi
from Stamford, CT to Portsmouth, OH

That's the driving distance. It would take 12 hours 47 mins to go from Stamford, Connecticut to Portsmouth, Ohio.

The flight distance (direct flight from Stamford, CT to Portsmouth, OH) is 526.15 mi.

665 mi = 1,070.47 kms