DL 676 then B6 1273 at JFK
Los Angeles → New York → Charleston (South Carolina)
Timetable, New York time
06:45DL 676 from Los Angeles at the gate
06:30B6 1273 to Charleston (South Carolina) leaves the gate
23 h 45 apart on the timetable, overnight
B6 1273 leaves 23 h 45 after DL 676 arrives on the timetable: more than half a day, so not a connection we count.