UA 2492 then UA 863 at San Francisco
Los Angeles → San Francisco → Sydney
Timetable, San Francisco time
07:30UA 2492 from Los Angeles at the gatealso NH 7357, VA 8059
23:05UA 863 to Sydney leaves the gatealso LX 3158, VA 8005, LH 9327, NZ 9863
15 h 35 apart on the timetable
UA 863 leaves 15 h 35 after UA 2492 arrives on the timetable: more than half a day, so not a connection we count.