There are
2,119 mi
from Markham, IL to Danville, CA
That's the driving distance. It would take 1 day 12 hours to go from Markham, Illinois to Danville, California.
The flight distance (direct flight from Markham, IL to Danville, CA) is 1,829.78 mi.
2,119 mi = 3,409.98 kms