DL 5641 then AA 1184 at Boston
Cleveland → Boston → Miami
Timetable, Boston time
19:35DL 5641 from Cleveland at the gate
17:15AA 1184 to Miami leaves the gate
21 h 40 apart on the timetable, overnight
AA 1184 leaves 21 h 40 after DL 5641 arrives on the timetable: more than half a day, so not a connection we count.