UA 1710 then CV 12 at O'Hare
San Diego → Chicago → Luxembourg
Timetable, Chicago time
16:54UA 1710 from San Diego at the gate
14:55CV 12 to Luxembourg leaves the gate
22 h 01 apart on the timetable, overnight
CV 12 leaves 22 h 01 after UA 1710 arrives on the timetable: more than half a day, so not a connection we count.