Originally Posted by Guy Betsy
Yes. Only in coach - and more frequent if you're MPC.
The only time a seat next to mine was blocked was when I was one of 3 paid J passengers on a flight and they upgraded the remaining passengers on a full London-HK flight way back in 99.
They wouldn't dare put an op-up'd no status passenger next to me!
But I did enjoy the empty seat next to me though... !
They will if the fight is totally over sold in Y class and need to U/G no status pax from the back...ha ha ha ha