UA 3907 then CV 69 at O'Hare
Amsterdam → Chicago → Luxembourg
Timetable, Chicago time
15:26UA 3907 from Amsterdam at the gate
04:00CV 69 to Luxembourg leaves the gate
12 h 34 apart on the timetable, overnight
CV 69 leaves 12 h 34 after UA 3907 arrives on the timetable: more than half a day, so not a connection we count.