WN 284 then UA 655 at Denver
Phoenix Sky Harbor → Denver → Las Vegas
Timetable, Denver time
19:50WN 284 from Phoenix Sky Harbor at the gate
19:40UA 655 to Las Vegas leaves the gate
23 h 50 apart on the timetable, overnight
UA 655 leaves 23 h 50 after WN 284 arrives on the timetable: more than half a day, so not a connection we count.