DL 5728 then DL 5647 at Boston
New York LaGuardia → Boston → Savannah
Timetable, Boston time
11:25DL 5728 from New York LaGuardia at the gate
11:06DL 5647 to Savannah leaves the gate
23 h 41 apart on the timetable, overnight
DL 5647 leaves 23 h 41 after DL 5728 arrives on the timetable: more than half a day, so not a connection we count.