UA 5420 then CV 12 at O'Hare
Milwaukee → Chicago → Luxembourg
Timetable, Chicago time
19:30UA 5420 from Milwaukee at the gate
14:55CV 12 to Luxembourg leaves the gate
19 h 25 apart on the timetable, overnight
CV 12 leaves 19 h 25 after UA 5420 arrives on the timetable: more than half a day, so not a connection we count.