SilkAir (Singapore) Private Limited is a regional airline with its head office in Airline House in Singapore; previously it was on the fifth storey of the SIA Superhub in Singapore. It is a wholly owned subsidiary of Singapore Airlines and operates scheduled passenger services from Singapore to 44 cities in Southeast Asia, the Indian Subcontinent, China and Australia. As the regional wing of Singapore Airlines, it serves the short-haul destinations in the Singapore Airlines Group network. From March 2013 to March 2014, the airline flew 3.411 million passengers and made an operating profit of S$34.5 million.