DL 409 then AA 4460 at Atlanta
Ontario → Atlanta → New York LaGuardia
Timetable, Atlanta time
14:14DL 409 from Ontario at the gate
13:36AA 4460 to New York LaGuardia leaves the gate
23 h 22 apart on the timetable, overnight
AA 4460 leaves 23 h 22 after DL 409 arrives on the timetable: more than half a day, so not a connection we count.