DL 556 then B6 1411 at JFK
Santa Ana → New York → Las Vegas
Timetable, New York time
06:00DL 556 from Santa Ana at the gate
22:05B6 1411 to Las Vegas leaves the gate
16 h 05 apart on the timetable
B6 1411 leaves 16 h 05 after DL 556 arrives on the timetable: more than half a day, so not a connection we count.