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Join Date: Apr 2012
Location: Leeds, UK
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as a general suggestion another option if you need to get back to T5 on the return and don't have any checked bags is to head to flight connections on arrival in to T3 and get the airside bus to T5 to clear immigration there.
the airside buses tend to wind down after 2100 though and looking at your flight i think you are due in after 2200 so unfortunately in your case it wouldn't work.