WN 864 then UA 5133 at Denver
Burbank → Denver → Butte
Timetable, Denver time
16:35WN 864 from Burbank at the gate
16:30UA 5133 to Butte leaves the gate
23 h 55 apart on the timetable, overnight
UA 5133 leaves 23 h 55 after WN 864 arrives on the timetable: more than half a day, so not a connection we count.