Experts are warning another volcanic explosion could happen at any time causing widespread disruption at the region's airports.
It comes as scientists from Oxford University and Gatwick-based Easyjet have just been to volcanos in Iceland to collect one tonne of ash.
It will help them develop a new system to detect ash clouds following volcanic eruptions allowing planes to safely fly around the problem.
If ash gets into plane engines they can fail.
In 2010, all air space in Europe was closed after a volcano erupted as a safety precaution. The new system will allow planes to keep flying by avoiding problem areas without the need for widespread closures of air space.