CM 1082 then UA 3900 at San Francisco
Burbank → San Francisco → Rio De Janeiro
Timetable, San Francisco time
21:50CM 1082 from Burbank at the gatealso UA 2854, AC 4174
16:00UA 3900 to Rio De Janeiro leaves the gate
18 h 10 apart on the timetable, overnight
UA 3900 leaves 18 h 10 after CM 1082 arrives on the timetable: more than half a day, so not a connection we count.