WN 571 then WN 149 at Phoenix
Dallas → Phoenix → Las Vegas
Timetable, Phoenix time
11:05WN 571 from Dallas at the gate
08:35WN 149 to Las Vegas leaves the gate
21 h 30 apart on the timetable, overnight
WN 149 leaves 21 h 30 after WN 571 arrives on the timetable: more than half a day, so not a connection we count.