5X 5602 then AA 2222 at O'Hare
Louisville → Chicago → Philadelphia
Timetable, Chicago time
18:075X 5602 from Louisville at the gate
16:50AA 2222 to Philadelphia leaves the gate
22 h 43 apart on the timetable, overnight
AA 2222 leaves 22 h 43 after 5X 5602 arrives on the timetable: more than half a day, so not a connection we count.