Originally Posted by
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Not to stray too far OT but depending on the winds SQ's SIN-EWR-SIN can technically be a RTW — SIN-EWR flies via the Pacific while EWR-SIN either takes the polar route or crosses the Atlantic and goes over Europe / Central Asia / India so on those days SQ does go around the world
In the winter, the same can happen with EWR and ORD flights to/from China.