AA 2282 then UA 4743 at Denver
Philadelphia → Denver → Salt Lake City
Timetable, Denver time
11:22AA 2282 from Philadelphia at the gate
08:00UA 4743 to Salt Lake City leaves the gate
20 h 38 apart on the timetable, overnight
UA 4743 leaves 20 h 38 after AA 2282 arrives on the timetable: more than half a day, so not a connection we count.