UA 1673 then CV 12 at O'Hare
Cleveland → Chicago → Luxembourg
Timetable, Chicago time
18:35UA 1673 from Cleveland at the gate
14:55CV 12 to Luxembourg leaves the gate
20 h 20 apart on the timetable, overnight
CV 12 leaves 20 h 20 after UA 1673 arrives on the timetable: more than half a day, so not a connection we count.