F9 4567 then UA 5019 at Denver
St Louis → Denver → Joplin
Timetable, Denver time
21:30F9 4567 from St Louis at the gate
20:55UA 5019 to Joplin leaves the gate
23 h 25 apart on the timetable, overnight
UA 5019 leaves 23 h 25 after F9 4567 arrives on the timetable: more than half a day, so not a connection we count.