UA 5279 then CV 69 at O'Hare
Oklahoma City → Chicago → Luxembourg
Timetable, Chicago time
15:38UA 5279 from Oklahoma City at the gate
04:00CV 69 to Luxembourg leaves the gate
12 h 22 apart on the timetable, overnight
CV 69 leaves 12 h 22 after UA 5279 arrives on the timetable: more than half a day, so not a connection we count.