WN 4923 then AA 5919 at Philadelphia
St Louis → Philadelphia → Toronto
Timetable, Philadelphia time
23:20WN 4923 from St Louis at the gate
21:56AA 5919 to Toronto leaves the gate
22 h 36 apart on the timetable, overnight
AA 5919 leaves 22 h 36 after WN 4923 arrives on the timetable: more than half a day, so not a connection we count.