The flag carrier of Singapore, Singapore Airlines (SQ) is one of the world's largest airlines. From its hub at Singapore Changi Airport (SIN), Singapore Airlines flies to more than 60 destinations in 35 countries on six continents. A member of the Star Alliance, the airline also has codeshare agreements with about 10 other airlines. Singapore flies all wide body jets configured with four classes of service: Singapore Airlines Suites, First Class, Business Class and Economy Class. The airline operates three lounges for premium passengers. The SilverKris Lounge has locations at 15 airports. Additionally, Changi Airport is home to The Private Room and KrisFlyer Gold Lounge.