DL 706 then AA 4349 at Atlanta
Denver → Atlanta → New York LaGuardia
Timetable, Atlanta time
17:48DL 706 from Denver at the gate
15:01AA 4349 to New York LaGuardia leaves the gate
21 h 13 apart on the timetable, overnight
AA 4349 leaves 21 h 13 after DL 706 arrives on the timetable: more than half a day, so not a connection we count.