Miles between Gaithersburg, MD and Portland, ME

There are
543 mi
from Gaithersburg, MD to Portland, ME

That's the driving distance. It would take 11 hours 3 mins to go from Gaithersburg, Maryland to Portland, Maine.

The flight distance (direct flight from Gaithersburg, MD to Portland, ME) is 476.18 mi.

543 mi = 873.24 kms