Glasgow and Edinburgh Airports remain closed entirely, while East Midlands Airport was closed until at least midday.
The snowstorm - labelled "the beast from the east" due to its Siberian origins - has shut down several United Kingdom airports and grounded hundreds of flights.
Aberdeen Airport is also fully operational, but some flights are subject to delays and cancellations.
"Due to the Red Weather Alert for heavy snow all airlines have now suspended their flight operations to and from Dublin Airport for the remainder of today and tomorrow (Friday)".
In London, Heathrow Airport says that it is working with airlines to consolidate flight schedules in order to provide more certainty regarding departing flights.More news: Sri Lanka up 4 notches to 91 on Corruption index
This comes after Ryanair cancelled all of their flights in and out of the country yesterday.
"If flying, please allow extra time for your journey".
In the UK, London City airport has been badly hit with some flights diverted to London Gatwick, Southampton and Birmingham and a flight from Luxembourg returned to its departure airport.
Most of the United Kingdom remains under severe weather alerts, with two red, two yellow, and two amber covering most of Britain. Travel update for United Kingdom airports.
And Heathrow Airport posted on Twitter, "Our teams have been clearing snow throughout the night and as a result our runways are open".
Meanwhile, a spokesperson said that "anyone with a cancelled flight can request a full refund, or request to be rebooked onto the next available flight, there will be no charge in this instance". No Ryanair or Aer Lingus flights will operate from there tomorrow.