Those travelling over French air space are being asked to contact their airline for the latest information.
A strike by air traffic control in France is leading to a number of cancellations across Europe and Ireland.
Dublin, Belfast, Shannon and Cork airports are likely to be affected with some Aer Lingus and Ryanair flights grounded.
Travel journalist Eoghan Corry says the onus is on airlines to provide updates to customers:
"They will either re-route you or put you on another flight to the same destination... it's their problem, could mean you're getting to where you're going later but you will get there".
Meanwhile, Ryanair CEO, Michael O'Leary expressed his distaste for cancelling flights.
"This is completely unacceptable. France is using minimum service legislation to protect its local French flights but all of the cancellations are then being disproportionately passed onto English flights, Irish flights, Italian flights, Spanish flights, German flights".
"This is unfair".
Michael O'Leary: ''We've been notified by the French Aviation Authorities of the 51st day of striking, on Monday May 1st, and that we must cancel another 220 flights, impacting 40,000 passengers..this is unacceptable'' pic.twitter.com/KmAiY9wCrn
— Ryanair (@Ryanair) April 29, 2023
The May bank holiday is expected to be a busy one for the airports, which no doubt will be majorly impacted by the strikes.