Originally Posted by
kanor
No its not general, but in this case LY-LX clearly made some agreement for this route.
For example VIE-CDG operated by AF as OS codeshare counts as a normal OS flight for M&M (there is a thread somewhere).
No - I mean a general rule that you earn award miles (at least) on codeshare flights when booked through the codeshare, even if operated on a non-alliance metal flight. ("General" rule means there are obviously exceptions. But when flying LY booked through AA with AA flight #, you earn AA miles. Flying QF booked through LY with LY flight #, you earn Matmid points. Flying EI booked through UA with UA flight #, you earn UA miles - and in that case, I believe status miles as well.)