Ryanair have released the list of flights they've cancelled up until Wednesday.
Anyone who's flight has been affected can apply for a refund or change to a later flight.
They're also reminding customers that they'll receive an email if their flight is cancelled.
The airline says part of the disruption is because of a backlog in holiday leave for its staff.
56 Ryanair flights are cancelled on Monday, it's 55 on Tuesday and 53 will be grounded on Wednesday.
On Tuesday, flights between Dublin and Glasgow, Krakow and Berlin won't take off while on Wednesday, Dublin flights to and from Manchester, Paris Beauvais, Amsterdam and Bristol have been cancelled.
If you're heading away somewhere but worried your flight might be affected, check out the details of Irish flights which have been cancelled and the full list here.