UA 3851 then AS 595 at San Francisco
Rio De Janeiro → San Francisco → Los Angeles
Timetable, San Francisco time
17:41UA 3851 from Rio De Janeiro at the gate
14:02AS 595 to Los Angeles leaves the gatealso AY 2511, TN 2716, IB 7265, IB 7280, BA 7610
20 h 21 apart on the timetable, overnight
AS 595 leaves 20 h 21 after UA 3851 arrives on the timetable: more than half a day, so not a connection we count.