UA 2331 then CV 69 at O'Hare
Washington → Chicago → Luxembourg
Timetable, Chicago time
14:40UA 2331 from Washington at the gate
04:00CV 69 to Luxembourg leaves the gate
13 h 20 apart on the timetable, overnight
CV 69 leaves 13 h 20 after UA 2331 arrives on the timetable: more than half a day, so not a connection we count.