UA 489 then UA 4743 at Denver
Santa Ana → Denver → Salt Lake City
Timetable, Denver time
12:06UA 489 from Santa Ana at the gate
08:00UA 4743 to Salt Lake City leaves the gate
19 h 54 apart on the timetable, overnight
UA 4743 leaves 19 h 54 after UA 489 arrives on the timetable: more than half a day, so not a connection we count.