CM 2398 then UA 3900 at San Francisco
Pasco → San Francisco → Rio De Janeiro
Timetable, San Francisco time
16:03CM 2398 from Pasco at the gatealso UA 5578
16:00UA 3900 to Rio De Janeiro leaves the gate
23 h 57 apart on the timetable, overnight
UA 3900 leaves 23 h 57 after CM 2398 arrives on the timetable: more than half a day, so not a connection we count.