UA 755 then VA 8413 at San Francisco
Reno → San Francisco → Phoenix
Timetable, San Francisco time
09:28UA 755 from Reno at the gatealso AC 4415, NH 7379
07:05VA 8413 to Phoenix leaves the gate
21 h 37 apart on the timetable, overnight
VA 8413 leaves 21 h 37 after UA 755 arrives on the timetable: more than half a day, so not a connection we count.