WN 2852 then WN 1272 at Phoenix
Pittsburgh → Phoenix → Las Vegas
Timetable, Phoenix time
15:20WN 2852 from Pittsburgh at the gate
14:30WN 1272 to Las Vegas leaves the gate
23 h 10 apart on the timetable, overnight
WN 1272 leaves 23 h 10 after WN 2852 arrives on the timetable: more than half a day, so not a connection we count.