There are
701 mi
from Lakeland, FL to Mt Juliet, TN
That's the driving distance. It would take 13 hours 8 mins to go from Lakeland, Florida to Mt Juliet, Tennessee.
The flight distance (direct flight from Lakeland, FL to Mt Juliet, TN) is 623.80 mi.
701 mi = 1,127.81 kms