Originally Posted by
IAN-UK
But that's not how it's expected to work in terms of upgrading cabin-class.
Lowest fare "commodity" travellers will stay where they are: high-Y fares are the ones likely to find Y+ tickets more attractive (one attraction being the cabin is NOT Business, and therefore within corporate travel policies).
If "rare bird" high-Ys move up, they'll free up more Y seats for those from the infinite masses seeking travel at lower fares.
[...]
The opposite signs are attached to migration down to Y+ from C. And here vacated C seats don't have infinite numbers waiting to fill those vacated.
It's not as simple as it looks
.
An agree and a tiny amendment: The Y+ class is allocated in the former square area of Y class thus reducing the
sum of Y and Y+ seats altogether.
Therefore the upgrading in comfort of Y+ is accompanied by a loss in overall capacity. That said Lufty can slash some super saver fares.
But it's not as simple as it looks