OZ 6344 then UA 8178 at San Francisco
St Louis → San Francisco → Los Angeles
Timetable, San Francisco time
10:36OZ 6344 from St Louis at the gate
22:50UA 8178 to Los Angeles leaves the gate
12 h 14 apart on the timetable
UA 8178 leaves 12 h 14 after OZ 6344 arrives on the timetable: more than half a day, so not a connection we count.