There are
510 mi
from Champaign, IL to Mendota Heights, MN
That's the driving distance. It would take 9 hours 22 mins to go from Champaign, Illinois to Mendota Heights, Minnesota.
The flight distance (direct flight from Champaign, IL to Mendota Heights, MN) is 412.95 mi.
510 mi = 821.34 kms