AA 4460 then DL 530 at Atlanta
New York LaGuardia → Atlanta → Denver
Timetable, Atlanta time
14:19AA 4460 from New York LaGuardia at the gate
13:45DL 530 to Denver leaves the gate
23 h 26 apart on the timetable, overnight
DL 530 leaves 23 h 26 after AA 4460 arrives on the timetable: more than half a day, so not a connection we count.