UA 5577 then UA 2127 at San Francisco
Ontario → San Francisco → Los Angeles
Timetable, San Francisco time
17:50UA 5577 from Ontario at the gate
06:00UA 2127 to Los Angeles leaves the gatealso AV 2163, UA 3904, NZ 9260
12 h 10 apart on the timetable, overnight
UA 2127 leaves 12 h 10 after UA 5577 arrives on the timetable: more than half a day, so not a connection we count.