Planes Flying Again in Europe
Planes are flying today into all of Europe's main airports -- Heathrow in London and Charles de Gaulle in Paris.
Still, experts say it could take more than a week to clear a backlog of stranded passengers.
Controllers predict that three quarters of the scheduled flights will go ahead today.
The International Air Transport Association says disruptions to European air travel from the volcanic ash cloud have cost the industry at least $1.7 billion.
The industry is asking governments to explore compensation.