London Heathrow Airport is located in London, England, and is the largest and busiest airport in the United Kingdom. It is the world's third busiest airport for passenger traffic and it handles more international passenger traffic than any other airport in the world. Heathrow is owned and operated by BAA, which also owns and operates six other UK airports. BAA is itself owned by an international consortium led by the Spanish Ferrovial Group. Heathrow is the primary hub of British Airways, bmi and Virgin Atlantic.