DL 5641 then AA 3220 at Boston
Cleveland → Boston → Dallas-Fort Worth
Timetable, Boston time
20:00DL 5641 from Cleveland at the gate
15:52AA 3220 to Dallas-Fort Worth leaves the gate
19 h 52 apart on the timetable, overnight
AA 3220 leaves 19 h 52 after DL 5641 arrives on the timetable: more than half a day, so not a connection we count.