Business Continuity Plan during the Icelandic April 2010 volcanic eruption Background information about the organisation The British Airways plc (BA) is the flag carrier airline of the United Kingdom it has its base at the Waterside where it is also headquartered, waterside is near its main hub at the London Heathrow Airport. British Airways operates its second hub at the Gatwick Airport and it has a third hub, served through one of its fully owned subsidiary, British Airways CityFlyer, at the London City Airport.