UA 705 then AC 4579 at San Francisco
Puerto Vallarta → San Francisco → Tucson
Timetable, San Francisco time
19:24UA 705 from Puerto Vallarta at the gatealso AC 4144
08:22AC 4579 to Tucson leaves the gatealso UA 5433, NZ 9749
12 h 58 apart on the timetable, overnight
AC 4579 leaves 12 h 58 after UA 705 arrives on the timetable: more than half a day, so not a connection we count.