UA 5355 then WN 2178 at Denver
Salt Lake City → Denver → Bozeman
Timetable, Denver time
12:24UA 5355 from Salt Lake City at the gate
08:40WN 2178 to Bozeman leaves the gate
20 h 16 apart on the timetable, overnight
WN 2178 leaves 20 h 16 after UA 5355 arrives on the timetable: more than half a day, so not a connection we count.