DL 9964 then AA 4460 at Atlanta
Grand Rapids → Atlanta → New York LaGuardia
Timetable, Atlanta time
18:19DL 9964 from Grand Rapids at the gate
14:49AA 4460 to New York LaGuardia leaves the gate
20 h 30 apart on the timetable, overnight
AA 4460 leaves 20 h 30 after DL 9964 arrives on the timetable: more than half a day, so not a connection we count.