DL 1625 then DL 557 at Atlanta
Memphis → Atlanta → New York LaGuardia
Timetable, Atlanta time
10:30DL 1625 from Memphis at the gate
09:30DL 557 to New York LaGuardia leaves the gate
23 h apart on the timetable, overnight
DL 557 leaves 23 h after DL 1625 arrives on the timetable: more than half a day, so not a connection we count.