AC 3990 then UA 2127 at San Francisco
Burbank → San Francisco → Los Angeles
Timetable, San Francisco time
17:45AC 3990 from Burbank at the gate
06:00UA 2127 to Los Angeles leaves the gatealso AV 2163, UA 3904, NZ 9260
12 h 15 apart on the timetable, overnight
UA 2127 leaves 12 h 15 after AC 3990 arrives on the timetable: more than half a day, so not a connection we count.