AA 3495 then UA 3872 at O'Hare
Cincinnati Northern Kentucky → Chicago → LCQ
Timetable, Chicago time
12:23AA 3495 from Cincinnati Northern Kentucky at the gate
00:31UA 3872 to LCQ leaves the gate
12 h 08 apart on the timetable, overnight
UA 3872 leaves 12 h 08 after AA 3495 arrives on the timetable: more than half a day, so not a connection we count.