WN 2852 then WN 577 at Phoenix
Pittsburgh → Phoenix → Las Vegas
Timetable, Phoenix time
15:20WN 2852 from Pittsburgh at the gate
12:55WN 577 to Las Vegas leaves the gate
21 h 35 apart on the timetable, overnight
WN 577 leaves 21 h 35 after WN 2852 arrives on the timetable: more than half a day, so not a connection we count.