Further flight disruptions are expected today between Ireland and Britain and France due to snow.
Aer Lingus has cancelled a number of flights to and from London’s Heathrow airport.
The 12 flights involve Dublin, Belfast, Shannon and Cork airports.
Intending passengers should check the airline's website for further details.
Stranded passengers at Heathrow are facing more travel disruption as around 260 flights are due to be cancelled.
The flight schedule is being reduced, following a joint decision by Heathrow, airlines and air traffic control, in an effort to minimise the expected disruption caused by snow and low visibility.
Eurostar has said all trains will be delayed, with a number of services to and from Paris and Brussels cancelled.
Meanwhile in France, snow has led the French Civil Aviation Authority to cancel 40% of flights at Charles De Gaulle and Orly Airports in Paris.
France's transport ministry said in a statement airlines had been asked to cut flight services by that amount at the two airports.
Snow started falling in Paris on Friday night as a winter cold snap swept many parts of Europe.
Forecasters predicted another fall in much of northern France for today.
The ministry advised would-be travellers to check in with their airlines for all flights from 4am.
Met Éireann has forecast a cold start with scattered wintry showers of rain or sleet in eastern parts of north Leinster and Ulster.
Temperatures will fall again tonight to -3C, with rain and sleet over much of Munster and west Connacht turning to snow in many areas.