Add to UA:
HKG-SIN
HKG-SGN
NRT-BKK
All of them can be purchased separately even though they belong to direct flights with stops.

UA doesn't fly to Nagoya (NGO), I guess that's a mistake there. Also, they are set to start flying IAD-ACC sometime in June - see http://www.flyertalk.com/forum/unite...-overview.html