AA 1221 then DL 1480 at JFK
Charlotte → New York → Atlanta
Timetable, New York time
14:30AA 1221 from Charlotte at the gate
14:00DL 1480 to Atlanta leaves the gate
23 h 30 apart on the timetable, overnight
DL 1480 leaves 23 h 30 after AA 1221 arrives on the timetable: more than half a day, so not a connection we count.