WN 3415 then WN 4454 at Phoenix
Dallas → Phoenix → Las Vegas
Timetable, Phoenix time
18:30WN 3415 from Dallas at the gate
17:10WN 4454 to Las Vegas leaves the gate
22 h 40 apart on the timetable, overnight
WN 4454 leaves 22 h 40 after WN 3415 arrives on the timetable: more than half a day, so not a connection we count.