Heathrow has seen a two per cent fall in the number of projected passengers, Gatwick an eight per cent drop and Stansted is likely to be down by seven per cent, BAA said. City airport, with its dependence on passengers from the financial industry, is also said to have seen a huge drop-off in recent weeks. However, the busiest days are still expected to be 19-22 December, with more than 400,000 people due to fly out of Heathrow on Friday and Saturday.