AA 2880 then UA 6060 at O'Hare
Philadelphia → Chicago → Lancaster
Timetable, Chicago time
17:29AA 2880 from Philadelphia at the gate
16:55UA 6060 to Lancaster leaves the gate
23 h 26 apart on the timetable, overnight
UA 6060 leaves 23 h 26 after AA 2880 arrives on the timetable: more than half a day, so not a connection we count.