Using money or using miles? As per rules, they are not upgradable using money, but IME they are upgradable using miles. Certainly on CX - never tried it on BA.
(Edit - I refer here to J-F upgrades (I've never done an LONEn). Y-J is not possible since L is no longer an upgradable booking class.)
Last edited by christep; Nov 16, 2009 at 10:41 pm