Heathrow Terminal 5 is an airport terminal at Heathrow Airport, the main airport serving London. Opened in 2008, the main building in the complex is the largest free-standing structure in the United Kingdom. Terminal 5 is currently used exclusively by British Airways and was exclusively used as one of the three global hubs of IAG, served by British Airways and Iberia until 12 July 2022 when Iberia moved all flights to Terminal 3. Prior to 2012, the terminal was used solely by British Airways.