CA 8443 then AA 4915 at O'Hare
Anchorage → Chicago → Lexington
Timetable, Chicago time
16:59CA 8443 from Anchorage at the gate
15:49AA 4915 to Lexington leaves the gate
22 h 50 apart on the timetable, overnight
AA 4915 leaves 22 h 50 after CA 8443 arrives on the timetable: more than half a day, so not a connection we count.