UA 561 then UA 837 at San Francisco
Kansas City → San Francisco → Tokyo Narita
Timetable, San Francisco time
20:10UA 561 from Kansas City at the gatealso OZ 6318, NZ 9502
10:45UA 837 to Tokyo Narita leaves the gatealso NH 7013
14 h 35 apart on the timetable, overnight
UA 837 leaves 14 h 35 after UA 561 arrives on the timetable: more than half a day, so not a connection we count.