DL 2637 then AA 4446 at Atlanta
Nashville → Atlanta → New York LaGuardia
Timetable, Atlanta time
07:37DL 2637 from Nashville at the gate
06:00AA 4446 to New York LaGuardia leaves the gate
22 h 23 apart on the timetable, overnight
AA 4446 leaves 22 h 23 after DL 2637 arrives on the timetable: more than half a day, so not a connection we count.