Volcanic ash spreads more travel misery across Europe
Millions of stranded travellers face further air chaos as the volcanic ash from Iceland that has closed most of Europe's airspace continues to spread.
"We don't see the light at the end of the tunnel yet," a spokesman for the international airline industry said.
An estimated three-quarters of flights were cancelled on Saturday. About 20 countries closed their airspace - some have extended flight bans into Monday.
Scientists say the Icelandic volcano activity shows no sign of abating.
COUNTRIES AFFECTED
Airspace closed:
Austria, Belgium, Bosnia-Hercegovina, Czech Republic, Denmark, Estonia, Finland, Germany, Hungary, Ireland, Latvia, Luxembourg, Netherlands, Poland, Slovakia, Slovenia, Sweden, Switzerland, Ukraine, UK
Partial closures:
Belarus: No flights between 7,000-11,000m (23,000-36,000 ft)
Croatia: (North-western airspace closed)
France (northern airspace, including Paris, closed until Monday)
Italy (northern airspace closed until Monday)
Lithuania (air traffic control leaving decision to fly to individual companies)
Norway (limited flights in north)
Serbia
Flights operating:
Spain, Bulgaria, Greece and Turkey
Live: Volcanic cloud over Europe
In pictures: Flight disruption
Economic impact of closures
Icelandic geologist Magnus Tumi Gudmundsson told the Associated Press news agency: "It's the magma mixing with the water that creates the explosivity. Unfortunately, there doesn't seem to be an end in sight."
Graeme Leitch, a meteorologist at Britain's National Weather Service, said light winds and high pressure over Europe meant the cloud was unlikely to be dispersed soon.
"We don't expect a great deal of change over the next few days," he told AP.
The International Air Transport Association (IATA) predicted little or no improvement on Sunday.
"Right now through most of Europe we do not see many flights moving at all," spokesman Steve Lott told AFP news agency.
Airlines are losing some £130m ($200m) a day in an unprecedented shutdown of commercial air travel, the IATA says.
Eurocontrol, which co-ordinates air traffic control in 38 nations, said it expected 17,000 flights to be cancelled across Europe on Saturday, from a total of 22,000 on a normal day.
Long way home
Since Thursday, countries across northern and central Europe have either closed airspace or shut key airports as the ash - a mixture of glass, sand and rock particles - can seriously damage aircraft engines.
Tales from stranded passengers around the globe
In the UK commercial flights have now been banned until at least 0700 local time (0600 GMT) on Sunday.
In northern France and northern Italy, airports are to remain shut until at least Monday.
Unable to catch flights, commuters across northern Europe have sought other means of transport, packing out trains, buses and ferries.
The Eurostar cross-channel rail service said it had never seen so many passengers on one day and the trains were fully booked until Monday.
I've only got enough medication for my epilepsy to last me until tomorrow, so my seizures are likely to start again unless I get access to that
George Craib, Amsterdam
Volcano ash: Your stories
The large no-fly zone also means that some world leaders will not be attending the funeral of the Polish president on Sunday.
US President Barack Obama has cancelled his visit to Poland.
German Chancellor Angela Merkel, who was due to return from a visit to the US on Friday, had to fly to Lisbon where she spent the night.
With all German airports still closed, she flew on to Italy on Saturday and is set to continue her journey home by bus.
The disruption also forced the cancellation of the inaugural Iraqi Airways flight from Baghdad to London.
Iceland volcano in maps
Volcanic ash: Your travel stories
How long will ash last?
US pop star Whitney Houston was forced to take a car ferry from Britain to Ireland for a concert after her flight was cancelled.
The travel chaos has been felt as far away as North America and Asia, with dozens of Europe-bound flights being cancelled.
British health officials said any effects of the ash on people with existing respiratory conditions were "likely to be short term".
Southern Iceland's Eyjafjallajokull volcano began erupting for the second time in a month on Wednesday, sending a plume of ash 8.5km (5.3 miles) high into the air.
Iceland lies on the Mid-Atlantic Ridge, the highly volatile boundary between the Eurasian and North American continental plates.