AA 6465 then UA 3874 at O'Hare
Detroit → Chicago → LCQ
Timetable, Chicago time
07:40AA 6465 from Detroit at the gate
06:30UA 3874 to LCQ leaves the gate
22 h 50 apart on the timetable, overnight
UA 3874 leaves 22 h 50 after AA 6465 arrives on the timetable: more than half a day, so not a connection we count.