DL 2368 then AA 1743 at O'Hare
Los Angeles → Chicago → Philadelphia
Timetable, Chicago time
17:50DL 2368 from Los Angeles at the gate
17:29AA 1743 to Philadelphia leaves the gate
23 h 39 apart on the timetable, overnight
AA 1743 leaves 23 h 39 after DL 2368 arrives on the timetable: more than half a day, so not a connection we count.