AA 2126 then CV 26U at O'Hare
Dallas-Fort Worth → Chicago → Luxembourg
Timetable, Chicago time
21:12AA 2126 from Dallas-Fort Worth at the gate
15:05CV 26U to Luxembourg leaves the gate
17 h 53 apart on the timetable, overnight
CV 26U leaves 17 h 53 after AA 2126 arrives on the timetable: more than half a day, so not a connection we count.