DL 5619 then DL 124 at Boston
Milwaukee → Boston → Lisbon
Timetable, Boston time
22:02DL 5619 from Milwaukee at the gate
21:40DL 124 to Lisbon leaves the gate
23 h 38 apart on the timetable, overnight
DL 124 leaves 23 h 38 after DL 5619 arrives on the timetable: more than half a day, so not a connection we count.