There are
2,001 mi
from West Covina, CA to Prospect Heights, IL
That's the driving distance. It would take 1 day 11 hours to go from West Covina, California to Prospect Heights, Illinois.
The flight distance (direct flight from West Covina, CA to Prospect Heights, IL) is 1,712.88 mi.
2,001 mi = 3.22 kms