There are
336 mi
from Champaign, IL to Dyersburg, TN
That's the driving distance. It would take 6 hours 8 mins to go from Champaign, Illinois to Dyersburg, Tennessee.
The flight distance (direct flight from Champaign, IL to Dyersburg, TN) is 288.79 mi.
336 mi = 540.88 kms