Originally Posted by
dre_techie
J is currently the lowest business fare, they will however switch them around very soon, to align them to the other carriers.
See this thread.
Wow, very interesting, thank you dre_techie. If I am reading it correctly, does this mean that J will now become a D fare? If so, will I now be able to do a Star Alliance upgrade award from business to first? I would be using UA miles, which requires C or D class only.