QR 47 then AA 843 at O'Hare
Liege → Chicago → Washington National
Timetable, Chicago time
18:56QR 47 from Liege at the gate
14:55AA 843 to Washington National leaves the gate
19 h 59 apart on the timetable, overnight
AA 843 leaves 19 h 59 after QR 47 arrives on the timetable: more than half a day, so not a connection we count.