BR 620 then UA 2019 at LAX
Taipei → Los Angeles → San Francisco
Timetable, Los Angeles time
01:37BR 620 from Taipei at the gate
15:05UA 2019 to San Francisco leaves the gate
13 h 28 apart on the timetable
UA 2019 leaves 13 h 28 after BR 620 arrives on the timetable: more than half a day, so not a connection we count.