Originally Posted by
jetsetkiwi
Im not 100% in this situation, but Air NZ has never interlined for any other airline than Star Alliance for me.
Is your statement regarding separate tickets (in which case I'd agree, they're unlikely to do it) or where there has been tickets purchased that NZ have sold, and include the non-Star airline?
I know for sure that NZ will interline to AA on LAX-MIA when sold as a through ticket (e.g. AKL-LAX-MIA); so I would think if it was a single NZ ticket (i.e. 086 stock) with a BA sector that they would interline the baggage.