DL 2646 then WN 956 at Boston
Chicago O'Hare → Boston → Baltimore
Timetable, Boston time
23:08DL 2646 from Chicago O'Hare at the gate
21:00WN 956 to Baltimore leaves the gate
21 h 52 apart on the timetable, overnight
WN 956 leaves 21 h 52 after DL 2646 arrives on the timetable: more than half a day, so not a connection we count.