Passenger numbers at Air France-KLM, Europe's biggest airline, dropped for a 10th month running in October, new data showed on Monday, as the economic crisis hits travellers' pockets.

Passengers numbers were down 4.1 percent on a 12-month comparison, while cargo activity plunged 19.1 percent also compared to the same month in 2008.

The figures were worse than in September, when passenger traffic dropped by a yearly 3.7 percent and cargo traffic fell 17.2 percent.

The biggest drop in passenger numbers was registered in Europe, followed by Asia and North America. The decline was less marked on Caribbean/Indian Ocean routes and on the Africa and Middle East network.