How to Get Cheap Flights on British Airways? British Airways, the United Kingdom's flag carrier, has its base of operations in Waterside, near London-Heathrow airport, and was born from the alliances and mergers of the airlines existing in the United Kingdom 30s to the 70s, becoming the airline that we knew about in 1974. British Airways is one of the largest and most modern fleets in the world. British Airways reservations work 24x7 and...