DL 939 then DL 688 at JFK
Los Angeles → New York → Seattle
Timetable, New York time
20:59DL 939 from Los Angeles at the gate
19:30DL 688 to Seattle leaves the gate
22 h 31 apart on the timetable, overnight
DL 688 leaves 22 h 31 after DL 939 arrives on the timetable: more than half a day, so not a connection we count.