DL 5653 then AA 1184 at Boston
Columbus (Ohio) → Boston → Miami
Timetable, Boston time
19:42DL 5653 from Columbus (Ohio) at the gate
17:15AA 1184 to Miami leaves the gate
21 h 33 apart on the timetable, overnight
AA 1184 leaves 21 h 33 after DL 5653 arrives on the timetable: more than half a day, so not a connection we count.