There are
1,997 mi
from Matteson, IL to Monrovia, CA
That's the driving distance. It would take 1 day 10 hours to go from Matteson, Illinois to Monrovia, California.
The flight distance (direct flight from Matteson, IL to Monrovia, CA) is 1,719.40 mi.
1,997 mi = 3,213.34 kms