AA 3146 then AA 3268 at Charlotte
Las Vegas → Charlotte → Hartford
Timetable, Charlotte time
06:10AA 3146 from Las Vegas at the gate
18:29AA 3268 to Hartford leaves the gate
12 h 19 apart on the timetable
AA 3268 leaves 12 h 19 after AA 3146 arrives on the timetable: more than half a day, so not a connection we count.