Thanks,I was unable to book seating online so I had to call Iberia directly.They booked my seat once I gave them my AA # but they said this benefit does not apply to my wife.I looked on both the Iberia website and AA and it is not clear that the benefits apply to companions.
When your top tier status is equivalent to oneworld Sapphire, you are entitled to the following oneworld benefits, no matter which oneworld airline or cabin class you are flying:
Access to priority Business Class check-in
Priority boarding
Access to preferred or pre-reserved seating when offered by the airline operating the flight
Priority standby and waitlisting (where offered)
Access to more than 650 airport lounges (with one guest) when travelling internationally, including premium Business Class and frequent flyer lounges, regardless of the class of service flown that day. For details about the oneworld lounge access policy, click here.
In addition to all of the above privileges, Sapphire frequent flyers can now enjoy two new benefits:
Extra baggage allowance*
As a Sapphire frequent flyer the following special baggage privileges will apply when you fly on oneworld airlines.
On international or domestic itineraries using the baggage allowance "weight" system - 15 kgs in addition to the ticketed Economy baggage allowance.
On international or domestic itineraries using the baggage allowance "piece" system - one additional bag*, weighing up to 23 kgs, up to a maximum of two pieces.
* On purely domestic itineraries, using the baggage allowance "piece" system, with no ticketed baggage entitlement - the assurance of at least one piece of checked baggage, weighing up to 23 kgs.
Customers travelling in First and Business Class cabins will in most cases receive an even greater free checked baggage allowance.
*This benefit is not available on British Airways 'Hand Baggage Only' fares on select short-haul routes.
*For domestic routes operated by LAN Airlines, Sapphire cardholders may check in up to two bags with a combined weight not exceeding 23 kgs.
There is no mention of companion benefit that i could find online.