Originally Posted by
haggis79
probably too late for the OP, but this is exactly the reason why I prefer to book my flights under the operating airlines' flight number, not via a code-share. At least with AF and DL this is absolutely possible in all booking classes (not via the DL homepage, though...

)
Hello Haggis79,
If I booked on DL, I had my reasons...
The lowest fare on DL accrues 100% of the miles while the corresponding lowest fare on AF, had I booked via AF, would have given only 25%...
Ticket issued by Delta, but flight on AF metal, ticket much cheaper (never knew why) plus 100% miles: you do the math...
-vinnyc