AA 9950 then UA 4568 at O'Hare
Philadelphia → Chicago → State College
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
10:25UA 4568 to State College leaves the gate
20 h 36 apart on the timetable, overnight
UA 4568 leaves 20 h 36 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.