Aer Lingus has said a number of its services will not be affected if pilots go ahead with threatened strike action next week.
Regional services, the Washington to Madrid route and flights from Belfast International Airport will fly as normal, the airline said today.
Aer Lingus is also offering a full refund to all affected passengers.
Passengers due to travel on Tuesday or Wednesday can apply to get their money back online or change their flight date, for free.