In April 2010 airspace all over Europe was affected , with many flights cancelled-which was unprecedented-due to the presence of volcanic ash in the upper atmosphere from the eruption of the Icelandic volcano Eyjafjallajökull . On 15 April 2010 the Finnish Air Force halted training flights when damage was found from volcanic dust ingestion by the engines of one of its Boeing F-18 Hornet fighters . On 22 April 2010 UK RAF Typhoon training flights were also temporarily suspended after deposits of volcanic ash were found in a jet 's engines . In June 2011 there were similar closures of airspace in Chile , Argentina , Brazil , Australia and New Zealand , following the eruption of Puyehue-Cordón Caulle , Chile
eruption of the Icelandic volcano Eyjafjallajökull
2010 eruptions of Eyjafjallajökull
Volcanic ash