The boarding pass was issued by a BA check-in machine at LGW.



I looked around and spotted one other passenger with "Business" on his boarding pass (same model), while the overwhelming majority did not have that annotation. I saw the contrasting "Business UK" as well. I started my trip in London (no connection, only the domestic flight), and was therefore surprised.

And by the way, a 737 rather than the usual 777 today.