BR 620 then UA 2794 at LAX
Taipei → Los Angeles → Chicago O'Hare
Timetable, Los Angeles time
01:37BR 620 from Taipei at the gate
15:43UA 2794 to Chicago O'Hare leaves the gate
14 h 06 apart on the timetable
UA 2794 leaves 14 h 06 after BR 620 arrives on the timetable: more than half a day, so not a connection we count.