Aer Lingus and Ryanair are warning that services may be cancelled or disrupted across the weekend.
This is due to a French air traffic controller strike on Saturday, Sunday and into the early hours of Monday.
Ryanair says it cancelled some 10 departures on Friday morning.
The carrier says it 'sincerely regrets' the delays, which it adds are "unjustified".
In a statement, Ryanair says it has been forced to cancel a number of flights over the weekend.
All affected customers will be contacted by e-mail and text message and advised of their options.
Aer Lingus says passengers planning to travel this weekend are advised to check the status of their flight before departing for the airport.
It says passengers can opt to be accommodated on the next available flight, re-book their flight free of charge, or cancel and apply for a refund.
Passengers can also get more information at the Aer Lingus call centre on 00-353-1-8868-989.
Dublin Airport has also asked people to check before coming for their flight.
An ATC strike in southern France is scheduled to start from 04.30 Saturday June 16 until 04.30 on Monday June 18. Passengers are advised to check latest flight information with their airline before coming to @DublinAirport
— Dublin Airport (@DublinAirport) June 15, 2018
