Originally Posted by
BAAZ
But it's the same for June as well - wide open exc Sundays LON-NYC, only 5 non-Saturdays NYC-LON.

You'll find that quite a lot of those LON-NYC redemptions are only from LCY. If another thread is to be believed, MFUs on that route are invalid. So MFU availability is actually much less than it appears from the graphic.