AA 899 then KJ 248 at O'Hare
Los Angeles → Chicago → Atlanta
Timetable, Chicago time
06:00AA 899 from Los Angeles at the gate
05:10KJ 248 to Atlanta leaves the gate
23 h 10 apart on the timetable, overnight
KJ 248 leaves 23 h 10 after AA 899 arrives on the timetable: more than half a day, so not a connection we count.