Originally Posted by Kacee

Well that's really UA's call. And it seems to me you're already describing an anomalous situation, because they should not ordinarily be in that situation . . . if they are, PE is cannibalizing J, as opposed to commanding a premium over Y, which is the whole point of offering a PE product. But if they're really down to O1, then I would think it should get last seat pricing, regardless of the J load.

If in practice UA is able to routinely sell out PE at a price that's higher than their available P or Z inventory, well more power to them. If they're able to do that, I presume they'll sell O all day long at full fare, and just op-up into J. But color me skeptical that's how this will play out. What I think is far more likely in these early days of PE is the J cabin will continue to sell as it more or less historically has, and the PE cabin will remain empty unless/until UA makes a reasonable amount of discount inventory available, particularly on flights where Z and P are still for sale.