Empress is right. Go to any asian TA and ask for the best fares on a Star Alliance carrier... (which is what I think you'd want right?)... and most likely they will offer UA or SQ - if its the latter, make sure you get the fare that will earn him miles.
There are many asian TAs in Chinatown. Most of them offer the same fares due to a cartel agreement between all asian run travel agencies so prices won't differ much from one to another.