AS 307 then KL 5638 at San Francisco
Los Angeles → San Francisco → New York JFK
Timetable, San Francisco time
10:26AS 307 from Los Angeles at the gatealso TN 2314, QR 3321
23:05KL 5638 to New York JFK leaves the gate
12 h 39 apart on the timetable
KL 5638 leaves 12 h 39 after AS 307 arrives on the timetable: more than half a day, so not a connection we count.