Originally Posted by
thijsseh
Can I ask a somewhat OT and exceedingly ignorant question (for which the answer is probably available elsewhere): Does upgrade availability come from the same fare bucket as award availability? In other words can I use CW award availability to see if WTP to CW upgrades are available?
It is the case with some other airlines, but not sure if BA use the same policy.
Yes, Upgrade using Avios uses the same bucket as full redemptions. More information in the Spending Avios sticky.