There are
1,988 mi
from Champaign, IL to Monrovia, CA
That's the driving distance. It would take 1 day 10 hours to go from Champaign, Illinois to Monrovia, California.
The flight distance (direct flight from Champaign, IL to Monrovia, CA) is 1,681.82 mi.
1,988 mi = 3,199.00 kms