DL 2646 then DL 124 at Boston
Chicago O'Hare → Boston → Lisbon
Timetable, Boston time
23:08DL 2646 from Chicago O'Hare at the gate
21:40DL 124 to Lisbon leaves the gate
22 h 32 apart on the timetable, overnight
DL 124 leaves 22 h 32 after DL 2646 arrives on the timetable: more than half a day, so not a connection we count.