AA 1147 then DL 1655 at Boston
Miami → Boston → San Francisco
Timetable, Boston time
17:08AA 1147 from Miami at the gate
16:50DL 1655 to San Francisco leaves the gate
23 h 42 apart on the timetable, overnight
DL 1655 leaves 23 h 42 after AA 1147 arrives on the timetable: more than half a day, so not a connection we count.