F9 2387 then DL 5723 at Charlotte
Philadelphia → Charlotte → New York LaGuardia
Timetable, Charlotte time
10:40F9 2387 from Philadelphia at the gate
09:00DL 5723 to New York LaGuardia leaves the gate
22 h 20 apart on the timetable, overnight
DL 5723 leaves 22 h 20 after F9 2387 arrives on the timetable: more than half a day, so not a connection we count.