UA 1843 then CV 32 at O'Hare
Denver → Chicago → Luxembourg
Timetable, Chicago time
21:30UA 1843 from Denver at the gate
18:40CV 32 to Luxembourg leaves the gate
21 h 10 apart on the timetable, overnight
CV 32 leaves 21 h 10 after UA 1843 arrives on the timetable: more than half a day, so not a connection we count.