I have a feeling that something has changed - if I follow the menu path from the main BA site (UK- English ) Book -> Flight and Hotel there is a swish new landing page and I think a new search capability. Its certainly prettier than the other ones (although there are so many slightly different its hard to keep up)

It's still never heard of Nairobi, but when I put in other destinations I am seeing Black Friday Offer: £200 Saving incl. Book by 29 Nov