AA 3071 then UA 3455 at Charlotte
Baton Rouge → Charlotte → Chicago O'Hare
Timetable, Charlotte time
21:29AA 3071 from Baton Rouge at the gate
17:33UA 3455 to Chicago O'Hare leaves the gate
20 h 04 apart on the timetable, overnight
UA 3455 leaves 20 h 04 after AA 3071 arrives on the timetable: more than half a day, so not a connection we count.