There are
2,007 mi
from Rosemead, CA to Mt Prospect, IL
That's the driving distance. It would take 1 day 11 hours to go from Rosemead, California to Mt Prospect, Illinois.
The flight distance (direct flight from Rosemead, CA to Mt Prospect, IL) is 1,718.99 mi.
2,007 mi = 3,229.56 kms