AC 4121 then UA 35 at San Francisco
Ontario → San Francisco → Osaka
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
11:25UA 35 to Osaka leaves the gatealso NH 7071
17 h 35 apart on the timetable, overnight
UA 35 leaves 17 h 35 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.