DL 5619 then DL 797 at Boston
Milwaukee → Boston → Seattle
Timetable, Boston time
22:02DL 5619 from Milwaukee at the gate
19:25DL 797 to Seattle leaves the gate
21 h 23 apart on the timetable, overnight
DL 797 leaves 21 h 23 after DL 5619 arrives on the timetable: more than half a day, so not a connection we count.