WN 284 then UA 475 at Denver
Phoenix Sky Harbor → Denver → Houston
Timetable, Denver time
19:50WN 284 from Phoenix Sky Harbor at the gate
19:25UA 475 to Houston leaves the gate
23 h 35 apart on the timetable, overnight
UA 475 leaves 23 h 35 after WN 284 arrives on the timetable: more than half a day, so not a connection we count.