LCY - the airport is half an hour's drive out of the city so most drivers who take people there end up waiting for a fare back. Trouble is, it takes an hour of queuing to get a fare and most of the fares are pretty local - just to Canary Wharf or suchlike. Then the choice is to wait in one of the giant queues at Canary Wharf or resign yourself to the long journey back into the city centre. You seldom get into a taxi at LCY to find a happy driver.