Miles between Gaithersburg, MD and St Augustine, FL

There are
765 mi
from Gaithersburg, MD to St Augustine, FL

That's the driving distance. It would take 14 hours 14 mins to go from Gaithersburg, Maryland to St Augustine, Florida.

The flight distance (direct flight from Gaithersburg, MD to St Augustine, FL) is 680.36 mi.

765 mi = 1,231.31 kms