Almost a year has passed since Hainan Airlines began its Beijing Capital-Boston-Brussels-Beijing Capital service. Of course, it is not quite this simple. The flight number changes in Boston, which is not among the world's ten busiest airports , while no traffic rights exist between Boston and Brussels.
Historically, many around-the-world passenger flights operated. They were on carriers that no longer exist (most famously Pan Am) and those that still do. Even United Airlines did it, including on the Boeing 747-400, such as Los Angeles-Hong Kong-Delhi-London Heathrow-Washington Dulles-Los Angeles. Some high-end charter-type services still exist, but they're extremely rare on a scheduled basis.
In The Run-Up To Hainan's Around-The-World Service
According to Cirium Diio da