At least nine flights from Dublin Airport scheduled for today have been cancelled.
The cancellations impact European and UK flights and the majority are with Aer Lingus.
However one British Airways, and one Air Portugal flight has also been cancelled.
The impacted destinations include Heathrow, Brussels, Amsterdam, Bordeaux and Lisbon.
There are strikes also taking place in various parts of the continent, including among baggage handlers in France.
Airports and airlines are also dealing with staff shortages.
