NZ 9426 then DL 643 at San Francisco
Seattle → San Francisco → New York JFK
Timetable, San Francisco time
21:50NZ 9426 from Seattle at the gate
14:05DL 643 to New York JFK leaves the gatealso AF 2593, LY 4568, VS 4844, LA 6672
16 h 15 apart on the timetable, overnight
DL 643 leaves 16 h 15 after NZ 9426 arrives on the timetable: more than half a day, so not a connection we count.