There are
2,016 mi
from Mt Prospect, IL to Montebello, CA
That's the driving distance. It would take 1 day 11 hours to go from Mt Prospect, Illinois to Montebello, California.
The flight distance (direct flight from Mt Prospect, IL to Montebello, CA) is 1,723.13 mi.
2,016 mi = 3,245.07 kms