If because flying from BOS would add more then 18,001 miles it would be 75,000
if there is a roundtrip ticket available on ANA website, it is 65K miles indeed (Boston---EWR/ORD--shanghai). I have seen it.
but more often, I could find two seperate flight legs available, so obviously if i book the trip online, it will cost me 85K miles.
Another question, if i can see 2 seperate legs (both are UA flights) available on ANA website and then tell ANA representative the flight numbers by phone, Can they definitely find the flights and put them together and book the trip for me with 65 K miles ?
Thanks again for your explanation.