Drop-off fees at the UK's major airports have risen by a third on average since last summer, new analysis has found. Airports UK, the trade body, said that free drop-offs were available and fees were part of airports' business models and climate change objectives. London City Airport, which only started making people pay this year, is the most expensive on a per-minute basis. At Belfast International Airport, it is now £5 for 10 minutes in the drop-off zone, up £2 on last year. In contrast, none of the top 10 airports in the EU charge for drop-offs, according to RAC research.