DL 82 then AA 4460 at Atlanta
Memphis → Atlanta → New York LaGuardia
Timetable, Atlanta time
14:12DL 82 from Memphis at the gate
13:36AA 4460 to New York LaGuardia leaves the gate
23 h 24 apart on the timetable, overnight
AA 4460 leaves 23 h 24 after DL 82 arrives on the timetable: more than half a day, so not a connection we count.