Originally Posted by
dfs24
SQ used to have a RTW kind of fare. US-SIN-LHR-US. The US-LHR sector operated by VS. This was many years ago, but if it exists, you can throw the LHR-US sector away and might still be cheaper than 2X 1 way.
The *A RTW is still available...TATL portion would be on UA or AC. Although not sure it would offer a saving.