AA 1997 then KJ 244 at O'Hare
St Louis → Chicago → Dallas-Fort Worth
Timetable, Chicago time
09:00AA 1997 from St Louis at the gate
08:30KJ 244 to Dallas-Fort Worth leaves the gate
23 h 30 apart on the timetable, overnight
KJ 244 leaves 23 h 30 after AA 1997 arrives on the timetable: more than half a day, so not a connection we count.