Singapore Airlines is the flag carrier of Singapore with its hub located at Changi Airport, and a member of the Star Alliance. The airline is notable for highlighting the Singapore Girl as its central figure in …Singapore Airlines is the flag carrier of Singapore with its hub located at Changi Airport, and a member of the Star Alliance. The airline is notable for highlighting the Singapore Girl as its central figure in the corporate branding segment as well as not significantly changing its livery throughout its history. Widely renowned as one of the world's best carriers, the airline is ranked as a 5-star airline by Skytrax, and it has also been ranked as the world's best airline five times. The airline operates a variety of Airbus and Boeing aircraft, namely the A350, A380, Boeing 737, Boeing 747 Freighter, Boeing 777 and Boeing 787.