Icelandic volcanoTravel alert for Cannes Film Festival goers: the nearest airport in Nice has reopened after the French authorities grounded outgoing flights on Sunday night. Authorities were still worried about drifting clouds of volcanic ash from Iceland. Flights from North America are still being rerouted around ash clouds over the Atlantic though, adding hours onto flight times to France. European air safety body Eurocontrol said the ash cloud had dispersed enough to reopen southern airports.