Passengers rest as they wait for their delayed flights at the Indira Gandhi International Airport in New Delhi, India, Wednesday, April 21, 2010. 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. (AP Photo/Gurinder Osan)
Read the article: VOLCANIC ASH: Airlines lose $1.7 billion from 100,000 canceled trips
