AA 9909 then AA 1568 at Phoenix
Salt Lake City → Phoenix → Las Vegas
Timetable, Phoenix time
14:30AA 9909 from Salt Lake City at the gate
10:15AA 1568 to Las Vegas leaves the gate
19 h 45 apart on the timetable, overnight
AA 1568 leaves 19 h 45 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.