UA 337 then UA 4743 at Denver
Phoenix Sky Harbor → Denver → Salt Lake City
Timetable, Denver time
08:10UA 337 from Phoenix Sky Harbor at the gate
08:00UA 4743 to Salt Lake City leaves the gate
23 h 50 apart on the timetable, overnight
UA 4743 leaves 23 h 50 after UA 337 arrives on the timetable: more than half a day, so not a connection we count.