FlyerTalk Forums - View Single Post - Transfer at LHR Between Terminal 3- Terminal 5
Old Jul 25, 2016 | 10:49 am
  #8  
360guy
 
Join Date: Apr 2004
Programs: Starwoods/ Marriott Life Time Platinum, Hilton-Diamond, and HP
Posts: 823
Originally Posted by KARFA
Airside bus via the flight connections route would be the best option. You can go landside at T3 and then take the Heathrow Express or tube to T5 but I would suggest those are less preferred options.

You will have to go through security at T5 regardless of the route you take between terminals.
Thank you all for the great information
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