UA 456 then CV 69 at O'Hare
Austin → Chicago → Luxembourg
Timetable, Chicago time
15:38UA 456 from Austin 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 456 arrives on the timetable: more than half a day, so not a connection we count.