Originally Posted by
Mwenenzi
Individual flights of a RTW can credit to different FFP's. But getting different ffn's for each segment in the reservation and having them stick is another question. Some times changing ffn's stick and other times not. A boarding pass can have a ffn printed on it, but at times will still credit to another airline ffp/ffn. All very problematic - random. A good travel agent can help.
Yep. It's non trivial and error prone but also possible.
Asking for all FFNs to be removed then the one you want to be added seems (in my limited experience) to help. Certainly you can have 2+ FFNs on a ticket which obviously increases risks it won't credit where you wanted. As noted, what's on the boarding pass isn't always where it will credit, though having the boarding pass show the FFN you want the flight to credit to seems smart if the effort to fix issues later seems worthwhile. Eg aadvantage customer care were willing to decredit an aa flight for me which should have gone to ay.