AA 540 then KJ 244 at O'Hare
Nashville → Chicago → Dallas-Fort Worth
Timetable, Chicago time
11:05AA 540 from Nashville at the gate
08:30KJ 244 to Dallas-Fort Worth leaves the gate
21 h 25 apart on the timetable, overnight
KJ 244 leaves 21 h 25 after AA 540 arrives on the timetable: more than half a day, so not a connection we count.