There are
2,019 mi
from Downey, CA to Lake Zurich, IL
That's the driving distance. It would take 1 day 11 hours to go from Downey, California to Lake Zurich, Illinois.
The flight distance (direct flight from Downey, CA to Lake Zurich, IL) is 1,720.10 mi.
2,019 mi = 3.22 kms