Update 13:40  Zurich, Switzerland (GenevaLunch) – Planes are flying over Switzerland again, but the airline Swiss, like many others, is unable to get all its scheduled flights back on track immediately. The main problem is that several airports remain at least partially closed, a spokesperson told GenevaLunch: in Germany, and until late morning, France, while Sweden was gradually opening Wednesday morning. Long-haul flights to both Paris and London are now being allowed to land.

Eighty of the 400 flights normally scheduled by Swiss for 21 April remained canceled, the spokesperson said at 13:40. Long-haul traffic is for the most part back to normal.