AF 2384 then KL 5638 at San Francisco
Boston → San Francisco → New York JFK
Timetable, San Francisco time
23:31AF 2384 from Boston at the gatealso DL 2919, SK 3585, LA 6228
22:25KL 5638 to New York JFK leaves the gate
22 h 54 apart on the timetable, overnight
KL 5638 leaves 22 h 54 after AF 2384 arrives on the timetable: more than half a day, so not a connection we count.