AA 4455 then B6 1117 at Boston
Washington National → Boston → New York JFK
Timetable, Boston time
07:46AA 4455 from Washington National at the gate
20:10B6 1117 to New York JFK leaves the gate
12 h 24 apart on the timetable
B6 1117 leaves 12 h 24 after AA 4455 arrives on the timetable: more than half a day, so not a connection we count.