WN 864 then UA 5817 at Denver
Burbank → Denver → Durango
Timetable, Denver time
16:30WN 864 from Burbank at the gate
15:50UA 5817 to Durango leaves the gate
23 h 20 apart on the timetable, overnight
UA 5817 leaves 23 h 20 after WN 864 arrives on the timetable: more than half a day, so not a connection we count.