There are
331 mi
from Mcdonough, GA to Fernandina Beach, FL
That's the driving distance. It would take 6 hours 9 mins to go from Mcdonough, Georgia to Fernandina Beach, Florida.
The flight distance (direct flight from Mcdonough, GA to Fernandina Beach, FL) is 248.04 mi.
331 mi = 532.77 kms