UA 5803 then CV 69 at O'Hare
Lexington → Chicago → Luxembourg
Timetable, Chicago time
14:41UA 5803 from Lexington at the gate
04:00CV 69 to Luxembourg leaves the gate
13 h 19 apart on the timetable, overnight
CV 69 leaves 13 h 19 after UA 5803 arrives on the timetable: more than half a day, so not a connection we count.