There are
846 mi
from Boynton Beach, FL to Roanoke, VA
That's the driving distance. It would take 16 hours to go from Boynton Beach, Florida to Roanoke, Virginia.
The flight distance (direct flight from Boynton Beach, FL to Roanoke, VA) is 742.49 mi.
846 mi = 1,361.49 kms