DL 5641 then DL 797 at Boston
Cleveland → Boston → Seattle
Timetable, Boston time
20:00DL 5641 from Cleveland at the gate
19:25DL 797 to Seattle leaves the gate
23 h 25 apart on the timetable, overnight
DL 797 leaves 23 h 25 after DL 5641 arrives on the timetable: more than half a day, so not a connection we count.