There are
476 mi
from Chattanooga, TN to Fernandina Beach, FL
That's the driving distance. It would take 8 hours 52 mins to go from Chattanooga, Tennessee to Fernandina Beach, Florida.
The flight distance (direct flight from Chattanooga, TN to Fernandina Beach, FL) is 375.78 mi.
476 mi = 765.66 kms