UA 4641 then DL 2544 at Denver
Durango → Denver → Salt Lake City
Timetable, Denver time
06:34UA 4641 from Durango at the gate
05:25DL 2544 to Salt Lake City leaves the gate
22 h 51 apart on the timetable, overnight
DL 2544 leaves 22 h 51 after UA 4641 arrives on the timetable: more than half a day, so not a connection we count.