DL 9964 then DL 997 at Atlanta
Grand Rapids → Atlanta → New York LaGuardia
Timetable, Atlanta time
18:19DL 9964 from Grand Rapids at the gate
17:00DL 997 to New York LaGuardia leaves the gate
22 h 41 apart on the timetable, overnight
DL 997 leaves 22 h 41 after DL 9964 arrives on the timetable: more than half a day, so not a connection we count.