BR 620 then AS 1754 at LAX
Taipei → Los Angeles → Portland (Oregon)
Timetable, Los Angeles time
01:37BR 620 from Taipei at the gate
16:15AS 1754 to Portland (Oregon) leaves the gate
14 h 38 apart on the timetable
AS 1754 leaves 14 h 38 after BR 620 arrives on the timetable: more than half a day, so not a connection we count.