Originally Posted by
armouredant
You can find out what the 10TP earning economy fares cost using ITA Matrix, and putting the following in the Extension Codes box: f ~bc=Q ~bc=O ~bc=G
You'd probably have to book with BA over the phone, or with a competent travel agent to get tickets in a specific class like that.
Matrix seems to be pricing up BA flights at a higher price than BA themselves. Think this is to do with some new charge imposed on some agents rather than booked direct. However, this will give you a guide of what is available.