F9 4949 then WN 1722 at Phoenix
Salt Lake City → Phoenix → Las Vegas
Timetable, Phoenix time
19:28F9 4949 from Salt Lake City at the gate
18:20WN 1722 to Las Vegas leaves the gate
22 h 52 apart on the timetable, overnight
WN 1722 leaves 22 h 52 after F9 4949 arrives on the timetable: more than half a day, so not a connection we count.