DL 553 then UA 1195 at LAX
Las Vegas → Los Angeles → San Francisco
Timetable, Los Angeles time
08:19DL 553 from Las Vegas at the gate
21:10UA 1195 to San Francisco leaves the gate
12 h 51 apart on the timetable
UA 1195 leaves 12 h 51 after DL 553 arrives on the timetable: more than half a day, so not a connection we count.