There are
869 mi
from Boynton Beach, FL to Gallatin, TN
That's the driving distance. It would take 15 hours 58 mins to go from Boynton Beach, Florida to Gallatin, Tennessee.
The flight distance (direct flight from Boynton Beach, FL to Gallatin, TN) is 777.84 mi.
869 mi = 1,397.86 kms