UA 59 then UA 3900 at San Francisco
Frankfurt am Main → San Francisco → Rio De Janeiro
Timetable, San Francisco time
16:05UA 59 from Frankfurt am Main at the gatealso AC 3783, LH 9410, NZ 9801
16:00UA 3900 to Rio De Janeiro leaves the gate
23 h 55 apart on the timetable, overnight
UA 3900 leaves 23 h 55 after UA 59 arrives on the timetable: more than half a day, so not a connection we count.