UA 3851 then OZ 6313 at San Francisco
Rio De Janeiro → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
17:41UA 3851 from Rio De Janeiro at the gate
16:45OZ 6313 to Dallas-Fort Worth leaves the gate
23 h 04 apart on the timetable, overnight
OZ 6313 leaves 23 h 04 after UA 3851 arrives on the timetable: more than half a day, so not a connection we count.