The largest airline in South Africa, South African Airways (SA) is also the nation's flag carrier. A member of the Star Alliance, SA flies non-stop to more than 40 destinations in 26 countries. These include points within South Africa, as well as destinations elsewhere in Africa, and in Europe, Asia, the Middle East, Australia, North America and South America. The airline also has codeshare agreements with about 15 airlines, including its low-cost domestic subsidiary Mango. South African Airways' fleet features two different two-cabin configuration (Business Class and Economy Class, or First Class and Economy Class). The carrier's hub is located at Johannesburg's OR Tambo International Airport (JNB).