Mixed Class Cabins on Iberia and British Airways
 

I have a flight tomorrow with the final destination being in Newark New Jersey. I’ll be flying the first leg from Madrid to London Heathrow in economy and then connecting to British Airways in business class. Will I be able to get access to fast track at Madrid as well as lounges and light of the fact that the highest class of service on this single itinerary is in business class? Or well I only get access to fast track and lounges while in London during the connection?

Hello from MAD,

If your profile's AA Gold = Ruby is accurate, then,
Fast track at MAD no, IB Lounge (at T4S, after passport control), yes
If possible get to MAD as early as possible to avoid the passport queues.

Not sure about if LHR T5 connections' fast track is open, if open then yes
https://www.flyertalk.com/forum/brit...lhr-t5-36.html