F9 4567 then UA 5216 at Denver
St Louis → Denver → Colorado Springs
Timetable, Denver time
21:30F9 4567 from St Louis at the gate
19:05UA 5216 to Colorado Springs leaves the gate
21 h 35 apart on the timetable, overnight
UA 5216 leaves 21 h 35 after F9 4567 arrives on the timetable: more than half a day, so not a connection we count.