There are
2,029 mi
from Chatham, IL to Modesto, CA
That's the driving distance. It would take 1 day 11 hours to go from Chatham, Illinois to Modesto, California.
The flight distance (direct flight from Chatham, IL to Modesto, CA) is 1,685.67 mi.
2,029 mi = 3,265.22 kms