You're right barnaby, the Champions League (whichever year we talk about) is small fry.
The Atkins capacity report (available from all good Department of Transport bookstores) is predicting 3000 extra business aviation flights, 150 head of State flights, between 1300 and 1500 extra helicopter flights each day, and many extra Olympic 'family' and support flights.
There will also be an unknown number of flights possibly using airfields close to the Eurostar and ferry terminals in continental Europe as well.
The mention of removing night time curfews is moot because the travelling public don't want to arrive in London after midnight or before the crack of dawn and so there would be little or no take up of any extra capacity at those times. Remember that most of these extra flights are being chartered, so the customer has a big say on when they want to travel, not the other way around
