AA 4448 then KJ 244 at O'Hare
Memphis → Chicago → Dallas-Fort Worth
Timetable, Chicago time
08:47AA 4448 from Memphis at the gate
08:30KJ 244 to Dallas-Fort Worth leaves the gate
23 h 43 apart on the timetable, overnight
KJ 244 leaves 23 h 43 after AA 4448 arrives on the timetable: more than half a day, so not a connection we count.