UA 3851 then AS 32 at San Francisco
Rio De Janeiro → San Francisco → New York JFK
Timetable, San Francisco time
17:41UA 3851 from Rio De Janeiro at the gate
13:50AS 32 to New York JFK leaves the gatealso QR 2073, QR 2085, QR 2138
20 h 09 apart on the timetable, overnight
AS 32 leaves 20 h 09 after UA 3851 arrives on the timetable: more than half a day, so not a connection we count.