I don't want to sound rude but, sgn is not a big airport or is a popular travel destination compare to some other location that have their only major carrier also I am from VT.JAL/Ana for Japan, SQ for Singapore, Cathy for Hong Kong, korea KR ,you should use your point on booking 2 one way ticket probably need around 180k between ur and Mr points also recommend using aircanda points system to SIN then just buy a ticket sin to atn those tickets are cheaper $100 maybe also their more availability in West cost compared to mid and east coast to Asia