AA 4806 then DL 5704 at Boston
Rochester → Boston → Washington National
Timetable, Boston time
08:28AA 4806 from Rochester at the gate
21:45DL 5704 to Washington National leaves the gate
13 h 17 apart on the timetable
DL 5704 leaves 13 h 17 after AA 4806 arrives on the timetable: more than half a day, so not a connection we count.