DL 3122 then DL 490 at Atlanta
Pittsburgh → Atlanta → New York LaGuardia
Timetable, Atlanta time
22:00DL 3122 from Pittsburgh at the gate
20:30DL 490 to New York LaGuardia leaves the gate
22 h 30 apart on the timetable, overnight
DL 490 leaves 22 h 30 after DL 3122 arrives on the timetable: more than half a day, so not a connection we count.