DL 5697 then DL 5801 at Boston
Richmond → Boston → Cincinnati
Timetable, Boston time
08:00DL 5697 from Richmond at the gate
20:45DL 5801 to Cincinnati leaves the gate
12 h 45 apart on the timetable
DL 5801 leaves 12 h 45 after DL 5697 arrives on the timetable: more than half a day, so not a connection we count.