There are
2,099 mi
from Markham, IL to Lathrop, CA
That's the driving distance. It would take 1 day 12 hours to go from Markham, Illinois to Lathrop, California.
The flight distance (direct flight from Markham, IL to Lathrop, CA) is 1,792.45 mi.
2,099 mi = 3,378.73 kms