ANA can be tricky as last year we did SEA-NRT-CGK returned as from YVR it was more expensive, it was a 767 and 50% AP
SEA was a 787, cheaper and 70% on AP
I looked at a bunch of fares types and many translated to under 100% to AP unless you went with the much higher fares!
Definitely have to do your homework unless you fly straight J