F9 4567 then WN 4411 at Denver
St Louis → Denver → Eugene
Timetable, Denver time
21:30F9 4567 from St Louis at the gate
20:50WN 4411 to Eugene leaves the gate
23 h 20 apart on the timetable, overnight
WN 4411 leaves 23 h 20 after F9 4567 arrives on the timetable: more than half a day, so not a connection we count.