Tweet
Thousands of passengers remain stranded as the ban on most flights to and from Scotland because of the volcanic ash continues until 0100 BST on Tuesday.Hundreds of school teachers are thought to be among the Scots stranded abroad.
The risk of volcanic ash heading over the UK could continue until Friday, weather forecasters have warned.
The disruption is costing the travel industry millions of pounds. Several airlines are considering laying off staff because of the grounded flights.
Supply teachers have been called in to cover for teachers unable to return from holiday in time for the first day after the Easter break.
East Renfrewshire Council said it has 132 teachers off work, more than 10% of teaching staff, but has kept all its schools open.
St Ninian's High School in Giffnock has the county's largest number of stranded teachers with 23 off work on Monday.
Education director John Wilson said: "We have swung into action with pre-prepared business continuity plans, including deploying supply teachers."
Susan Nicolson, a school teacher from Edinburgh, has been stranded in New York since Thursday following a five-day break.
She told BBC Radio Scotland: "We're now booked on the first flight out on Wednesday and we just have to keep checking the website.
"We're trying to stay optimistic because if we don't get out on Wednesday we are going to be a bit stuck for money."
She said three colleagues had been able to return to work, but the school had been "supportive".
Mrs Nicolson said: "There are definitely worse places to be stuck, but we're at the point now that we just want to be back home and I think our families want us to be back home too."
A Polish man who has been stuck at Glasgow Airport for two days told BBC Scotland he felt he could not leave in case a flight became available.
Piotr, 38, said: "This is not a problem for me to stay here two nights, three nights."
In the Western Isles, a 34-year-old woman was flown by Stornoway Coastguard Rescue Helicopter to Glasgow's Southern General Hospital on Sunday evening, after experiencing complications with her pregnancy.
Royal Navy ship Ark Royal, which was taking part in the Joint Warrior exercise off the north east coast of Scotland, has been deployed to help get stranded travellers from Spain, which is not affected by the flight ban, to the UK.
Some scientists have warned the eruption from the Eyjafjallajoekull volcano could continue for months.
Restrictions on Scottish airports were been lifted briefly on Friday before being quickly re-imposed as the cloud changed shape and direction.
A British Airways flight from New York and a Thomas Cook flight from Orlando were allowed to land at Glasgow Airport on Saturday morning.
Dust from the cloud has fallen to the ground in some areas of Scotland, but the Scottish Environment Protection Agency has said it does not pose a risk to health.This article is from the BBC News website. ? British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.