There are
2,016 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.
2,016 mi = 3,244.08 kms