Z wrote: "Of course there is also DL but if it is an ID90 it will be costly due to the YQ added" and I read something similar in the NA forum. I'm confused, since my carrier (NW) has an OA agreement w. Delta, and I've often bought ZED tickets for Delta (to do JFK-NCE and back) from NW, and never had any trouble using them on Delta.
On a CDG-related note: Since my first, horrible experience non-reving back to US out of CDG, we have avoided CDG like the plague. Searh the forum for CDG. I think mhy post was about March 2005, also flywithoutreservations has insights. Good luck!