AA 5072 then DL 5630 at Charlotte
Richmond → Charlotte → Boston
Timetable, Charlotte time
16:28AA 5072 from Richmond at the gate
14:37DL 5630 to Boston leaves the gate
22 h 09 apart on the timetable, overnight
DL 5630 leaves 22 h 09 after AA 5072 arrives on the timetable: more than half a day, so not a connection we count.