MAG (Airports Group) | 55,773 followers on LinkedIn. Manchester Airports Group is the largest UK airport operator for Manchester, London Stansted and East Midlands Airports. | Manchester Airports Group (MAG) is the UK’s largest airports group. Collectively, MAG owns and operates three UK airports – Manchester, London Stansted, and East Midlands – alongside digital travel services business, CAVU. Last year 54m passengers flew through our airports, and we contributed more than £8bn to the UK economy.