So, when the airspace is open on Wednesday millions of people tried to get home.
It needs a lot of plane trips to get everybody home.
So some stranded passenger are still stranded even when the European airspace is now opened.
Jenna Suttmeier , 21, right, and Shannon Grossman, 20, left, from Seattle, United States, play volleyball as they wait for their flight to Madrid at the Son Sant Joan Airport in Palma de Mallorca, Spain, on Sunday, April 18, 2010. Spain's airport authority has closed 12 airports as the ash cloud emerging from an Icelandic volcano reaches the north of the country. (AP Photo/Manu Mielniezuk)
This is adisaster especially to the stranded passengers.