Charles de Gaulle International Airport in Paris, France, has seen a fall in passenger traffic, with only 4.1 million passengers using the terminal in April due to flights being cut during the volcanic ash crisis.
Airport operator Aéroports de Paris said passenger numbers dropped 19.1% for the month compared with the same period in 2009.
The ash crisis stopped 1.4 million passengers from using the terminal between 15 and 20 April, according to Aéroports de Paris.
Paris airports handled a total of 5.9 million passengers overall, while Paris-Orly in the south of the city handled 1.8 million passengers – a 17% drop.
International traffic, excluding that to and from Europe, dropped 13.9% during April.
European traffic, excluding France, fell by 23.1%, including a 23.3% decline on Schengen routes and a drop of 29.6% on Great Britain and Ireland routes.
Paris airports have recorded a 4.9% decline in traffic since the beginning of the year.
Aéroports de Paris is the airport authority that owns and manages the fourteen civil airports and airfields in Paris.