CX 806 then AA 9908 at O'Hare
Hong Kong → Chicago → Milwaukee
Timetable, Chicago time
12:30CX 806 from Hong Kong at the gate
10:00AA 9908 to Milwaukee leaves the gate
21 h 30 apart on the timetable, overnight
AA 9908 leaves 21 h 30 after CX 806 arrives on the timetable: more than half a day, so not a connection we count.