For many avgeeks, Singapore Changi Airport (SIN) serves as something of a bucket list destination, with the beautiful Asian hub known all over the world for its impressive ‘Jewel’ complex. It also serves as a handy gateway to other major destinations in the Asia-Pacific region for transit passengers, with its importance underlined by the fact that five different major US airports currently offer direct, non-stop flights toSingapore Changi Airport.