AA 2143 then DL 5630 at Boston
Chicago O'Hare → Boston → Charlotte
Timetable, Boston time
11:59AA 2143 from Chicago O'Hare at the gate
11:25DL 5630 to Charlotte leaves the gate
23 h 26 apart on the timetable, overnight
DL 5630 leaves 23 h 26 after AA 2143 arrives on the timetable: more than half a day, so not a connection we count.