AA 1927 then AA 2576 at Charlotte
Las Vegas → Charlotte → Chicago O'Hare
Timetable, Charlotte time
18:38AA 1927 from Las Vegas at the gate
18:05AA 2576 to Chicago O'Hare leaves the gate
23 h 27 apart on the timetable, overnight
AA 2576 leaves 23 h 27 after AA 1927 arrives on the timetable: more than half a day, so not a connection we count.