Originally Posted by
Cyba
It is not unheard of for British people, and indeed Europeans in general, to take vacation in August, in Portugal amongst other places
It is however surprising that you can't find any availability at all. I've checked a random date, 3 August and can see wide open availability on each of BA's 4 flights that day.
But that's because you are seeing the Gold availability.
As a non-Gold, there's still plenty of availability on over half of dates from LHR-LIS in either ET or CE.
Logged in as a non-Gold, I still see plenty of availability in WT/ET IAD-LHR-LIS, eg 7,8,9,10 August. Returns are availble 8,9,10,11,12 August. Similar story in CW/CE.
There doesn't seem to any availability after 12 August at the moment.