AA 10 then B6 615 at JFK
Los Angeles → New York → San Francisco
Timetable, New York time
06:59AA 10 from Los Angeles at the gate
19:00B6 615 to San Francisco leaves the gate
12 h 01 apart on the timetable
B6 615 leaves 12 h 01 after AA 10 arrives on the timetable: more than half a day, so not a connection we count.