UA 1243 then OO 356 at San Francisco
Puerto Vallarta → San Francisco → Reno
Timetable, San Francisco time
16:32UA 1243 from Puerto Vallarta at the gatealso AC 5311
16:31OO 356 to Reno leaves the gate
23 h 59 apart on the timetable, overnight
OO 356 leaves 23 h 59 after UA 1243 arrives on the timetable: more than half a day, so not a connection we count.