DL 5200 then B6 1223 at JFK
Charleston (South Carolina) → New York → Los Angeles
Timetable, New York time
19:29DL 5200 from Charleston (South Carolina) at the gate
16:48B6 1223 to Los Angeles leaves the gate
21 h 19 apart on the timetable, overnight
B6 1223 leaves 21 h 19 after DL 5200 arrives on the timetable: more than half a day, so not a connection we count.