AA 2880 then UA 3018 at O'Hare
Philadelphia → Chicago → Newark
Timetable, Chicago time
17:37AA 2880 from Philadelphia at the gate
07:30UA 3018 to Newark leaves the gatealso UA 3910
13 h 53 apart on the timetable, overnight
UA 3018 leaves 13 h 53 after AA 2880 arrives on the timetable: more than half a day, so not a connection we count.