Lufthansa flights are being grounded again today due to an ongoing strike by pilots.
Today's disruption will see eight services cancelled in and out of Dublin airport.
It is the pilots' 14th strike action since April 2014 in a row over increased pay.
Passengers intending to travel are advised to check the airline's website before going to the airport.
The Cockpit union said the airline has been posting "very good numbers for years" but pilots have not seen any pay increases.
It is asking for a 3.66% yearly raise for five years. Lufthansa has called the union's position "absolutely incomprehensible".