Originally Posted by
djjaguar64
That will be amazing. We fly to S'pore and GRU all the time and this will be an excellent mileage run. The best route could be SIN_NRT_GRU or GIG

Why on earth would SQ fly SIN-NRT-GRU? NRT-GRU by itself is longer than a nonstop flight from SIN!
See
GCM.