AA 1280 then B6 1523 at JFK
Phoenix → New York → Los Angeles
Timetable, New York time
05:40AA 1280 from Phoenix at the gate
17:59B6 1523 to Los Angeles leaves the gate
12 h 19 apart on the timetable
B6 1523 leaves 12 h 19 after AA 1280 arrives on the timetable: more than half a day, so not a connection we count.