WN 3847 then B6 1524 at LAX
San Francisco → Los Angeles → New York JFK
Timetable, Los Angeles time
08:35WN 3847 from San Francisco at the gate
20:55B6 1524 to New York JFK leaves the gate
12 h 20 apart on the timetable
B6 1524 leaves 12 h 20 after WN 3847 arrives on the timetable: more than half a day, so not a connection we count.