The trip is now on AA.COM and tariffs switched me to the AA codeshare ORD-LHR, but left the HKG-LAX flight on CX. The price listed is the correct base fare of 1,003,300 JPY, with taxes of 110,290 JPY, and carrier imposed charges of 32,400 JPY. Taxes seem high while carrier charges seem low. No QR flights for now and no longhaul departures from LHR, so a bit puzzled as to why the taxes are so high. The initial Asia flight taxes come to about $160. Have 5 USA flights and just ORD-LHR open segment CDG-HND. I was expecting about 15-20% above base fare and this is close to that.