The Irish Aviation Authority has said it's unlikely that the country's airspace will re-open to commercial flights until later in the week.
The IAA has grounded flights into and out of Ireland until 1 pm tomorrow at the earliest.
The decision is in line with that of several other European countries as the Icelandic volcanic ash disrupts flight plans for thousands of people for a fourth day.
Ryanair has cancelled all flights to and form the UK and Ireland information is avaiable HERE
City of Derry Airport update:
Passengers are advised that Ryanair has cancelled all flights from the UK and Ireland until at least 1300 on Wednesday.
Aer Arann have advised that all flights from Dublin to City of Derry have been cancelled for Sunday the 18th and Monday the 19th of April.
Passengers due to travel should regularly check with their airlines for the very latest information.