Global airlines have lost about 1.7 billion dollars of revenue as a result of the disruptions caused by the Icelandic volcanic eruption. The International Air Transport Association (IATA) said that at its height, the "crisis" hit almost a third of global flights. It also estimated that 1.2 million passengers a day were affected. IATA noted that airlines had saved about 110 million dollars a day on fuel while planes were not flying, but said they had also faced additional costs from looking after stranded passengers. A separate report by the the Centre for Economics and Business Research has estimated the cost to airlines of the disruptions to be 1.08 billion euros over the six days. David Frost, director general of the British Chambers of Commerce, said the cost to the UK economy of the flight disruptions was likely to have been more than 100 million pounds a day.