WN 8501 then UA 2602 at Denver
Reno → Denver → Boise
Timetable, Denver time
17:35WN 8501 from Reno at the gate
15:55UA 2602 to Boise leaves the gate
22 h 20 apart on the timetable, overnight
UA 2602 leaves 22 h 20 after WN 8501 arrives on the timetable: more than half a day, so not a connection we count.