WN 642 then UA 888 at San Francisco
Burbank → San Francisco → Beijing
Timetable, San Francisco time
11:05WN 642 from Burbank at the gate
10:45UA 888 to Beijing leaves the gatealso CA 7206
23 h 40 apart on the timetable, overnight
UA 888 leaves 23 h 40 after WN 642 arrives on the timetable: more than half a day, so not a connection we count.