AA 2057 then CA 3174 at O'Hare
New York LaGuardia → Chicago → Guangzhou
Timetable, Chicago time
22:00AA 2057 from New York LaGuardia at the gate
13:40CA 3174 to Guangzhou leaves the gate
15 h 40 apart on the timetable, overnight
CA 3174 leaves 15 h 40 after AA 2057 arrives on the timetable: more than half a day, so not a connection we count.