AA 3352 then UA 3872 at O'Hare
Columbus (Ohio) → Chicago → LCQ
Timetable, Chicago time
12:12AA 3352 from Columbus (Ohio) at the gate
00:31UA 3872 to LCQ leaves the gate
12 h 19 apart on the timetable, overnight
UA 3872 leaves 12 h 19 after AA 3352 arrives on the timetable: more than half a day, so not a connection we count.