Today I had a T5C to T5C connection, and I took some photos so that anyone else can be sufficiently guided. A number of regular travellers have complained the signs aren't clear, hopefully this will help. This is for T5C, a very similar process also happens at T5B, for which this is the companion thread.

http://www.flyertalk.com/forum/briti...s-service.html

This thread is intended if the following applies:

• If arriving at T5C (typically long haul) and connecting to another departure from T5C (again typically long haul). Transfer to and from domestic cannot happen at T5C, but anything else is possible. A380 services almost certainly will leave from T5C, though it's not a complete guarantee.
• Your onwards service needs to leave from T5C and be shown on the departure monitors as such. If it doesn't you can try at the desk, since their computers have slightly more information.
• At T5B you can also use that Flight Connection service to go to T5C.
• You can do this connection if you have separate PNRs, Avios bookings, duty-free bags, pacemakers.
• In doing this, you forfeit easy access to the lounges, Galleries Club, Flounge and Concorde Room. Once you are through Flight Connections at T5C you can get to T5B and indeed T5A by tunnel, but frankly for all the trials and tribulations that causes you may as well get on the transit to T5A and do it there. The alternative is before going through this procedure, act as if you have a connection at T5B and follow the signs accordingly.
• There is a Starbucks café, which is unusual in selling alcohol. The previous £15 allowance from BA to status and premium passengers has now been removed. The nearest lounge is in T5B, see the passageway guide in the forum's Dashboard for directions.
• There is also BA lounge wifi available at Starbucks, but it would be helpful if you remembered the standard BA password (used through much of BA's network). If not the much slower HAL wifi is available.
• All of T5 has step free access, so lifts can be used at all points here, however be careful to get off at the right place.
• With the exception of domestic to international departures, all flight connections at T5 involve a security check, and in this scenario it takes place in T5C.
• The reward is the most stress free transfer I have ever had at any airport, anywhere.

To be clear: you cannot clear Flight Connections T5C (or indeed its equivalent in T5B) unless your departure is from one of these gates. You cannot use these Flight Connection facilities to clear T5A.

Firstly, once you are off the airbridge, establish you are indeed at T5C. When you arrive you should see signs like this:


Then if you suspect your service is a T5C connection, you can check that on these monitors.


Then follow the left hand sign for T5C - though it's a separate escalactor, it's a bit pointless since they take you down to the same place (a sub floor) as the transit passengers.



HOWEVER: do not go down more than one level. Before the main descent to the transit, you will see the main entrance to Flight Connections T5C, with security immediately behind:



The BA staff member will scan your boarding pass and check your passport. Then you pass to the tender mercies of HAL security staff. Usual procedure: laptops, iPads liquids, big bags of electrical items, belts out.

You will then be airside T5C and feed into the final escalator off the incoming transit escalators to go up a level to the main T5C concourse for depatures.