B6 382 then AA 4425 at Boston
Richmond → Boston → Buffalo
Timetable, Boston time
08:41B6 382 from Richmond at the gate
08:00AA 4425 to Buffalo leaves the gate
23 h 19 apart on the timetable, overnight
AA 4425 leaves 23 h 19 after B6 382 arrives on the timetable: more than half a day, so not a connection we count.