B6 8662 then DL 2677 at Boston
Kansas City → Boston → Nashville
Timetable, Boston time
14:52B6 8662 from Kansas City at the gate
14:45DL 2677 to Nashville leaves the gate
23 h 53 apart on the timetable, overnight
DL 2677 leaves 23 h 53 after B6 8662 arrives on the timetable: more than half a day, so not a connection we count.