Originally Posted by julianin

Basic are N,O,Q,P fares where the fare code ends in 4K.

Check page 4 of this document where you can see what fare codes correspond to classic, basic and flexible but again (sorry it's in spanish!!)

https://dl.dropboxusercontent.com/u/...castellano.pdf

Premium economy gives you 1,25 avios per mile and full economy fare TP's on Iberia Plus. I haven't flown Premium Economy in companies other than BA so can't say if for other oneworld partners the same applies.

I just hope that IB Plus would have a proper earn table on their website like BAEC does!