DL 939 then DL 685 at JFK
Los Angeles → New York → San Diego
Timetable, New York time
20:59DL 939 from Los Angeles at the gate
20:45DL 685 to San Diego leaves the gate
23 h 46 apart on the timetable, overnight
DL 685 leaves 23 h 46 after DL 939 arrives on the timetable: more than half a day, so not a connection we count.