AA 6486 then UA 350 at O'Hare
Detroit → Chicago → Philadelphia
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
11:03UA 350 to Philadelphia leaves the gate
17 h 34 apart on the timetable, overnight
UA 350 leaves 17 h 34 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.