DL 1697 then AA 1284 at Boston
Phoenix → Boston → Miami
Timetable, Boston time
21:00DL 1697 from Phoenix at the gate
18:04AA 1284 to Miami leaves the gate
21 h 04 apart on the timetable, overnight
AA 1284 leaves 21 h 04 after DL 1697 arrives on the timetable: more than half a day, so not a connection we count.