B6 204 then AA 3748 at Boston
Hamilton → Boston → Washington National
Timetable, Boston time
16:00B6 204 from Hamilton at the gate
07:30AA 3748 to Washington National leaves the gate
15 h 30 apart on the timetable, overnight
AA 3748 leaves 15 h 30 after B6 204 arrives on the timetable: more than half a day, so not a connection we count.