LH 9178 then UA 2127 at San Francisco
Chicago O'Hare → San Francisco → Los Angeles
Timetable, San Francisco time
17:25LH 9178 from Chicago O'Hare at the gate
06:00UA 2127 to Los Angeles leaves the gatealso AV 2163, NZ 9260
12 h 35 apart on the timetable, overnight
UA 2127 leaves 12 h 35 after LH 9178 arrives on the timetable: more than half a day, so not a connection we count.