UA 372 then WN 1775 at Denver
Billings → Denver → Colorado Springs
Timetable, Denver time
08:38UA 372 from Billings at the gate
20:55WN 1775 to Colorado Springs leaves the gate
12 h 17 apart on the timetable
WN 1775 leaves 12 h 17 after UA 372 arrives on the timetable: more than half a day, so not a connection we count.