There are
348 mi
from Champaign, IL to Suamico, WI
That's the driving distance. It would take 6 hours 40 mins to go from Champaign, Illinois to Suamico, Wisconsin.
The flight distance (direct flight from Champaign, IL to Suamico, WI) is 312.16 mi.
348 mi = 560.82 kms