F9 3871 then WN 149 at Phoenix
Salt Lake City → Phoenix → Las Vegas
Timetable, Phoenix time
14:46F9 3871 from Salt Lake City at the gate
08:35WN 149 to Las Vegas leaves the gate
17 h 49 apart on the timetable, overnight
WN 149 leaves 17 h 49 after F9 3871 arrives on the timetable: more than half a day, so not a connection we count.