AA 3038 then DL 5665 at Boston
Charlotte → Boston → Richmond
Timetable, Boston time
15:47AA 3038 from Charlotte at the gate
15:35DL 5665 to Richmond leaves the gate
23 h 48 apart on the timetable, overnight
DL 5665 leaves 23 h 48 after AA 3038 arrives on the timetable: more than half a day, so not a connection we count.