UA 1492 then CV 69 at O'Hare
Las Vegas → Chicago → Luxembourg
Timetable, Chicago time
14:32UA 1492 from Las Vegas at the gate
04:00CV 69 to Luxembourg leaves the gate
13 h 28 apart on the timetable, overnight
CV 69 leaves 13 h 28 after UA 1492 arrives on the timetable: more than half a day, so not a connection we count.