Heathrow Airport is so big that it has many post codes. The post code for most of Terminal 4 is TW6 3XZ
TW6 1JS is the postcode for the station for terminals 1, 2 and 3.
You will have to specify exactly who you are trying to contact when you write to the airport.
What is the postal address of Heathrow airport terminal 5
Terminal 4 has more than one post code but the terminal office post code is TW6 3XZ. If you are writing to another organisation within the terminal, so long as you put their correct name on the letter and the above post code, it should arrive safely.
The postal address for Heathrow Airport is: Heathrow Airport, 234 Bath Road, Hayes, Middlesex, UB3 5AP, United Kingdom
Heathrow, London, UK
The airport code for Yakima Air Terminal is YKM.
The airport code for Cavern City Air Terminal is CNM.
The UK doesn't use ZIP codes, it uses post codes which are much more detailed, so each of the five terminals at Heathrow will have its own post code.
This sort code is being used by Barclays Bank. It is assigned to the Heathrow Airport branch.
Could be LHR (Heathrow) or LGW (Gatwick).