AA 9909 then WN 1020 at Phoenix
Salt Lake City → Phoenix → Las Vegas
Timetable, Phoenix time
14:30AA 9909 from Salt Lake City at the gate
13:45WN 1020 to Las Vegas leaves the gate
23 h 15 apart on the timetable, overnight
WN 1020 leaves 23 h 15 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.