LAX has no Priority Pass or Plaza Premium lounges.
LAX has several Priority Pass restaurants (good for CapitalOne/Chase customers), and a great Centurion lounge (for Amex customers). Chicago? Think there is opportunity for growth. Plus...Ontario has two Priority Pass lounges, and Orange County offers two airline lounges which compares rather favorably to Chicago's secondary airports of Midway and Milwaukee (one airline lounge) none of which open to most Southwest passengers.