Originally Posted by StatusChallenged

Bought the SFO-HKG PE sale on black friday which booked into E fare. On return flight, was upgraded to J, as OWE on A350 (CX 892). Flight to HKG J looked full, when I was upgraded on my return flight there were 3 empty seats. This was done on the day of, my online checkin the day before still reflected my PE seat. Probably helped to have a weekday return versus a weekend.