Originally Posted by AA2MM
If my memory is correct , from LA to HKG/Asia , to upsell from K to H is only $150US round trip...from K to B is around $500US round trip . I have never heard of an M class sold in the US . Ex Asia , yes .
Consolidator fares ex-USA can be even in L, and K class. Not to mention the infamous S class which now bear no miles whatsoever.
There are M classes available.