Air passengers in face further delays today with up to a fifth of all flights at Heathrow Airport expected to be cancelled due to snow. Aer Lingus has also cancelled 12 flights today.
The cancelled Irish flights were due to serve Dublin, Belfast, Shannon and Cork airports. A full list of the cancellations is available here.
The airline is advising intending passengers to check the airline's website for further details before departing for the airport.
This evening Heathrow announced its flight schedule tomorrow will be reduced by 10 per cent, about 130 flights.
It said the decision was taken to minimise expected disruption caused by low visibility, which forecasts show is highly probable.
40 percent of flights to Paris's main airports have also been cancelled as snow continued to blanket parts of Europe, with more forecast.
More than 100 Heathrow flights were cancelled yesterday after hundreds of passengers spent the night in the airport on Friday night.
Large parts of the UK will experience further snowfall today, with up to 4cm falling in the West and North and 6cm in the East Midlands, East Anglia and the South East, including London.
Up to 10cm could fall in local areas, and 15cm on higher ground, weather experts said.
While thousands of passengers were stranded at Heathrow for a second day, four climbers were killed by an avalanche in the Scottish Highlands.
They were climbing on Bidean Nam Bian near Glencoe when a snow-covered slope is believed to have given way, sending them hundreds of feet to their deaths.
Two of the six-strong party survived, one of whom, a woman, is seriously injured in hospital.
Seven people were also taken to hospital after a double-decker bus collided with two cars and ploughed into a garden, Humberside Fire and Rescue Service said.
Passengers were angry yesterday, mainly at British Airways (BA), after it cancelled at least 100 flights, leaving them stuck for hours on planes or stranded at the airport.
Many branded BA’s treatment of them as “appalling, accusing staff of not keeping them informed as to what was happening.
BA and the airport insisted they were doing everything they could in difficult circumstances.
Travellers at regional airports including Leeds Bradford, Humberside and Newcastle were also frustrated by delays and disruption caused by the wintry weather.
The road and rail networks are also braced for further bad weather.
PA