5X 5602 then AA 2499 at O'Hare
Louisville → Chicago → Dallas-Fort Worth
Timetable, Chicago time
18:075X 5602 from Louisville at the gate
17:16AA 2499 to Dallas-Fort Worth leaves the gate
23 h 09 apart on the timetable, overnight
AA 2499 leaves 23 h 09 after 5X 5602 arrives on the timetable: more than half a day, so not a connection we count.