From The Airport Wiki

British Airways plc (LSE: BAY, NYSE: BAB) is the largest airline and flag carrier of the United Kingdom and one of the largest in Europe. Its main hubs are London Heathrow and London Gatwick. British Airways PLC holds a United Kingdom Civil Aviation Authority Type A Operating Licence, it is permitted to carry passengers, cargo and mail on aircraft with 20 or more seats.[1] British Airways is a founding member of the Oneworld airline alliance.