OM 223 then UA 889 at Beijing
Ulaanbaatar → Beijing → San Francisco
Timetable, Beijing time
19:30OM 223 from Ulaanbaatar at the gate
19:20UA 889 to San Francisco leaves the gate
23 h 50 apart on the timetable, overnight
UA 889 leaves 23 h 50 after OM 223 arrives on the timetable: more than half a day, so not a connection we count.