AA 5072 then AA 1454 at Charlotte
Richmond → Charlotte → Las Vegas
Timetable, Charlotte time
16:28AA 5072 from Richmond at the gate
16:08AA 1454 to Las Vegas leaves the gate
23 h 40 apart on the timetable, overnight
AA 1454 leaves 23 h 40 after AA 5072 arrives on the timetable: more than half a day, so not a connection we count.