AA 9909 then WN 887 at Phoenix
Salt Lake City → Phoenix → Las Vegas
Timetable, Phoenix time
14:30AA 9909 from Salt Lake City at the gate
11:10WN 887 to Las Vegas leaves the gate
20 h 40 apart on the timetable, overnight
WN 887 leaves 20 h 40 after AA 9909 arrives on the timetable: more than half a day, so not a connection we count.