AA 5050 then DL 5519 at Atlanta
Philadelphia → Atlanta → Tri-Cities
Timetable, Atlanta time
14:00AA 5050 from Philadelphia at the gate
13:45DL 5519 to Tri-Cities leaves the gate
23 h 45 apart on the timetable, overnight
DL 5519 leaves 23 h 45 after AA 5050 arrives on the timetable: more than half a day, so not a connection we count.