UA 3906 then UA 2127 at San Francisco
Austin → San Francisco → Los Angeles
Timetable, San Francisco time
10:03UA 3906 from Austin at the gate
06:00UA 2127 to Los Angeles leaves the gatealso AV 2163, UA 3904, NZ 9260
19 h 57 apart on the timetable, overnight
UA 2127 leaves 19 h 57 after UA 3906 arrives on the timetable: more than half a day, so not a connection we count.