AA 4396 then DL 5483 at JFK
Washington National → New York → Jacksonville
Timetable, New York time
07:27AA 4396 from Washington National at the gate
07:15DL 5483 to Jacksonville leaves the gate
23 h 48 apart on the timetable, overnight
DL 5483 leaves 23 h 48 after AA 4396 arrives on the timetable: more than half a day, so not a connection we count.