There are
1,967 mi
from Champaign, IL to Rialto, CA
That's the driving distance. It would take 1 day 10 hours to go from Champaign, Illinois to Rialto, California.
The flight distance (direct flight from Champaign, IL to Rialto, CA) is 1,649.58 mi.
1,967 mi = 1.61 kms