BR 8 then CX 7858 at San Francisco
Taipei → San Francisco → Seattle
Timetable, San Francisco time
06:40BR 8 from Taipei at the gatealso TG 6256
18:48CX 7858 to Seattle leaves the gate
12 h 08 apart on the timetable
CX 7858 leaves 12 h 08 after BR 8 arrives on the timetable: more than half a day, so not a connection we count.