So I got my 3 O-class on FRA-PHL, but I am still curios why for example Denver on 7th which has 8F 8A has only 1 O-class, While FRA YYZ has F6A6 and O 3!? Also MUC-IAD has F8A8O2 and FRA-JFK on the 9th has F5A4O2.
I am not very keen o travel trough either PHL or YYC as my final destination is LAS!
Where is the logic? Is it all automatic or is someone physically adding O-class seats and just forget to do that on specific destinations?