WN 4922 then AA 9950 at Philadelphia
St Louis → Philadelphia → Chicago O'Hare
Timetable, Philadelphia time
14:00WN 4922 from St Louis at the gate
13:01AA 9950 to Chicago O'Hare leaves the gate
23 h 01 apart on the timetable, overnight
AA 9950 leaves 23 h 01 after WN 4922 arrives on the timetable: more than half a day, so not a connection we count.