Originally Posted by
moa999
You shouldn't have any issues getting into TBIT, if asked just say you're going in for the better shopping (not much in T4).
To exit basically same way as you came in at TBIT, there is a path along the wall next to the security lines.
Then exit the front of TBIT turn right, and into T4.
Downside is having to go through security twice.
Under the rules you and sister should get access to the FL (I would even say the same if you were on a domestic AA flight). Whether it is worth the effort however is another matter.
Thanks for the detailed answer !
We will see how long before we will be arriving at the airport. If we have enough time and security is not too crowded at TBIT, we will have a look at the OWF lounge, otherwise AAFL will be good enough. My sister does not travel a lot and does not know much about lounges etc... I think that one is a nice one to see before a 10 hour flight in Y !