British airports operator BAA said the eurozone crisis has lowered traffic numbers from UK airports to Greece, Spain and other European countries suffering worsening economic conditions.
The owner of London Heathrow said passenger numbers between Heathrow and Greece dropped 11.3 per cent in May compared with the same month a year ago, with numbers to and from Italy falling 9.2 per cent, Portugal 11.4 per cent and Spain 2.5 per cent.
"The impact of the eurozone crisis is still being felt with sharp falls in passenger numbers to the worst affected countries and reduced cargo traffic," said BAA's chief executive Colin Matthews.
BAA, owned by Spanish infrastructure group Ferrovial, said cargo traffic - a key indicator of economic health - fell 2.4 per cent across its airports last month. Cargo traffic at Heathrow was down 3.8 per cent.
IAG, formed by the merger of British Airways and Iberia, last week said worsening economic conditions in Spain hit its performance last month, undermining strength in long-haul travel out of London.