UA 4394 then CV 69 at O'Hare
Huntsville → Chicago → Luxembourg
Timetable, Chicago time
14:39UA 4394 from Huntsville at the gate
04:00CV 69 to Luxembourg leaves the gate
13 h 21 apart on the timetable, overnight
CV 69 leaves 13 h 21 after UA 4394 arrives on the timetable: more than half a day, so not a connection we count.