FlyerTalk Forums - View Single Post - Transiting in and out of Heathrow at T5 - but can I use a lounge in T3?
Old Jul 19, 2022 | 3:52 am
  #19  
:D!
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Well you have time so why not try it out. If they reject you at T3 connections can't you just go back to T5? Why would you exit through the border?
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