WN 864 then UA 5546 at Denver
Burbank → Denver → Colorado Springs
Timetable, Denver time
16:35WN 864 from Burbank at the gate
15:30UA 5546 to Colorado Springs leaves the gate
22 h 55 apart on the timetable, overnight
UA 5546 leaves 22 h 55 after WN 864 arrives on the timetable: more than half a day, so not a connection we count.