B6 616 then DL 5483 at JFK
San Francisco → New York → Jacksonville
Timetable, New York time
07:24B6 616 from San Francisco at the gate
07:15DL 5483 to Jacksonville leaves the gate
23 h 51 apart on the timetable, overnight
DL 5483 leaves 23 h 51 after B6 616 arrives on the timetable: more than half a day, so not a connection we count.