AC 4121 then UA 1960 at San Francisco
Ontario → San Francisco → Raleigh-Durham
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gatealso UA 5483
14:25UA 1960 to Raleigh-Durham leaves the gatealso VA 8573, NZ 9568
20 h 35 apart on the timetable, overnight
UA 1960 leaves 20 h 35 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.