Originally Posted by
dabo_gc
I also wrote that ANA-Star Aliance has simlar program, and ANA SFC membership is Star Aliance Gold. It means ANA is better than JAL.
ANA/Star Alliance is of more interest to me than JAL/OW. Unfortunately, unlike the relevant JAL webpages you provided a link to, I can't find an English language page which describes this program.
You state "If you want to keep JGC & OW Sapphire, you need to fly only 20.000miles(One World) and four flights with JAL." Would you happen to know if the cost of keeping the SFC membership is equally minimal?