Originally Posted by
serfty
I don't believe it's related to T5 , LHR or any UK airport.
It's related to the UK APD where it's basically up to an additional £80 to depart the UK unless in transit.
Fair point, which as someone who has little choice but to pay APD I had forgotten. I wonder whether HMT has ever done a cost benefit analysis of the monetary benefits of APD against the lost tax take on people like the OP discouraged from visiting.