AA 6354 then WN 1722 at Phoenix
St George → Phoenix → Las Vegas
Timetable, Phoenix time
19:25AA 6354 from St George at the gate
18:40WN 1722 to Las Vegas leaves the gate
23 h 15 apart on the timetable, overnight
WN 1722 leaves 23 h 15 after AA 6354 arrives on the timetable: more than half a day, so not a connection we count.