BA Euroflyer is the name of the new British Airways offshoot set to start operating from Gatwick next year.
The registration of the title at Companies House is a further step towards the establishment of the business.
BA has already come to agreement with a number of unions over staffing for the Gatwick carrier and other talks are ongoing.
Final talks with ground handling staff are now expected to be concluded after BA reached agreement with pilots’ union Balpa last month.
In a note to colleagues last week, BA chief executive Sean Doyle said: “Our plans for a new BA branded subsidiary to fly short-haul at Gatwick are progressing well, and whilst we still have some further negotiations to sort, it looks likely that we will be up and running to fly the summer schedule.”