I know it's only been a few days, but anyone know if IB are the same as BA? I have an IB flight from JFK - MAD in Aug, then connecting MAD - LHR. I booked based on MCT and interlining bags. This is a very customer unfriendly change.
AA are not adopting this and will continue to interline bags, from what I have read.
http://www.britishairways.com/assets...h-check-in.pdf