Alitalia

Alitalia (AZ/AZA) was the flag carrier and largest airline of Italy based in Rome. It is now defunct, ceasing operations in October 2021 and having its operations and assets transferred to ITA Airways, the new flag carrier of Italy. Neither Alitalia nor ITA operate flights to Singapore. I was lucky enough to have caught both its long-haul aircraft types (A330 and B777) when I was at Tokyo Narita.