AA 6043 then AA 4651 at Philadelphia
State College → Philadelphia → St Louis
Timetable, Philadelphia time
20:15AA 6043 from State College at the gate
18:40AA 4651 to St Louis leaves the gate
22 h 25 apart on the timetable, overnight
AA 4651 leaves 22 h 25 after AA 6043 arrives on the timetable: more than half a day, so not a connection we count.