There are
1,960 mi
from Wheaton, IL to Montclair, CA
That's the driving distance. It would take 1 day 10 hours to go from Wheaton, Illinois to Montclair, California.
The flight distance (direct flight from Wheaton, IL to Montclair, CA) is 1,688.92 mi.
1,960 mi = 3,155.08 kms