UA 5355 then WN 447 at Denver
Salt Lake City → Denver → Seattle
Timetable, Denver time
12:24UA 5355 from Salt Lake City at the gate
11:30WN 447 to Seattle leaves the gate
23 h 06 apart on the timetable, overnight
WN 447 leaves 23 h 06 after UA 5355 arrives on the timetable: more than half a day, so not a connection we count.