UA 561 then UA 5621 at San Francisco
Kansas City → San Francisco → Eugene
Timetable, San Francisco time
20:10UA 561 from Kansas City at the gatealso OZ 6318, NZ 9502
11:15UA 5621 to Eugene leaves the gate
15 h 05 apart on the timetable, overnight
UA 5621 leaves 15 h 05 after UA 561 arrives on the timetable: more than half a day, so not a connection we count.