AA 5199 then AA 1454 at Charlotte
Gulfport → Charlotte → Las Vegas
Timetable, Charlotte time
16:46AA 5199 from Gulfport at the gate
16:08AA 1454 to Las Vegas leaves the gate
23 h 22 apart on the timetable, overnight
AA 1454 leaves 23 h 22 after AA 5199 arrives on the timetable: more than half a day, so not a connection we count.