UA 1925 then WN 1209 at Denver
Charlotte → Denver → Raleigh-Durham
Timetable, Denver time
18:10UA 1925 from Charlotte at the gate
17:55WN 1209 to Raleigh-Durham leaves the gate
23 h 45 apart on the timetable, overnight
WN 1209 leaves 23 h 45 after UA 1925 arrives on the timetable: more than half a day, so not a connection we count.