Air Canada (TSX: AC) is the flag carrier and largest airline of Canada. The airline, founded in 1937, provides scheduled and charter air transport for passengers and cargo to 182 destinations worldwide. It is the world's tenth-largest passenger airline by fleet size, and is a founding member of the Star Alliance. Air Canada's corporate headquarters are located in Montreal, Quebec. Air Canada had passenger revenues of CA$13.8 billion in 2015. The airline's regional service is Air Canada Express. Air Canada, along with Air China, British Airways, Delta Air Lines, Emirates, Etihad Airways, Korean Air, Qantas, Qatar Airways, Singapore Airlines, South African Airways and United Airlines are the only airlines in the world to fly to all six inhabited continents.