There are
393 mi
from Champaign, IL to Mt Juliet, TN
That's the driving distance. It would take 7 hours 10 mins to go from Champaign, Illinois to Mt Juliet, Tennessee.
The flight distance (direct flight from Champaign, IL to Mt Juliet, TN) is 286.34 mi.
393 mi = 632.70 kms