There are
2,004 mi
from Lansing, IL to Monrovia, CA
That's the driving distance. It would take 1 day 11 hours to go from Lansing, Illinois to Monrovia, California.
The flight distance (direct flight from Lansing, IL to Monrovia, CA) is 1,728.87 mi.
2,004 mi = 3,224.83 kms