There are
2,017 mi
from Irvine, CA to Prospect Heights, IL
That's the driving distance. It would take 1 day 11 hours to go from Irvine, California to Prospect Heights, Illinois.
The flight distance (direct flight from Irvine, CA to Prospect Heights, IL) is 1,718.14 mi.
2,017 mi = 3.22 kms