UA 561 then QR 2125 at San Francisco
Kansas City → San Francisco → Santa Ana
Timetable, San Francisco time
20:10UA 561 from Kansas City at the gatealso OZ 6318, NZ 9502
17:49QR 2125 to Santa Ana leaves the gatealso AS 2407, BA 7599
21 h 39 apart on the timetable, overnight
QR 2125 leaves 21 h 39 after UA 561 arrives on the timetable: more than half a day, so not a connection we count.