Industrial action is due to take place tomorrow, with three more strike days set for the weekend
Ryanair has cancelled 75 flights as a result of industrial action in France.
Flights in and out of the country will be grounded today as air traffic controllers take to picket lines.
French ATCs are also planning three more days of strikes for this weekend, from Friday to Sunday.
Ryanair has repeatedly called on the European Commission to take action to prevent more disruption to flights.
In a statement yesterday, the airline again urged the EU body to:
The company has also asked the public to support their campaign, 'Keep Europe's Skies Open'.
Ryanair's Kenny Jacobs said the latest strike is a "clear escalation of their attempts to cause as much disruption as possible".
"Not only will European consumers heading off in huge numbers on their summer holidays be affected, but football fans from all over the continent face massive disruption as they get ready for the European Championships, which begin next week," he said.
Passengers are advised to check the status of their flight here on Ryanair’s website before heading to the airport.