Originally Posted by
Irazabul (Post # 204)
So if I understand correctly, I would be most interested in PZ and RN inventory as that upgrades me to Business or PP using miles?
Should I assume that all classed below W are pretty much purchased?
Yes, PZ and RN inventory are what you would be looking for. It could indeed mean that all fares below W were sold. On some markets it is also possible that they have not yet been put out for sale. Maybe a combination, with the very lowest fares never offered. Why should UA sell for lower than they have to?