Ryanair has cancelled 170 flights due to French air traffic controllers going on strike - with boss Michael O'Leary branding it "abundantly unfair".
The French Civil Aviation Authority requested airlines cut flights as it struggles to cope with industrial action by air traffic controllers (ATC).
Members of the UNSA-ICNA union are striking today and tomorrow (July 3 and 4) in a dispute about pay and staff numbers.
The move has resulted in hundreds or even thousands of flights being impacted, with Ryanair alone cancelling 170 flights, affecting 30,000 passengers.
CEO Michael O'Leary this morning said: "Once again European families are held to ransom by French air traffic controllers going on strike.
"It is not acceptable that overflights over French airspace en route to their destination are being cancelled/delayed as a result of yet another French ATC strike. It makes no sense and is abundantly unfair on EU passengers and families going on holidays.
"Ryanair calls on Ursula von der Leyen to take urgent action to reform EU ATC services by 1.) ensuring that ATC services are fully staffed for the first wave of daily departures, and 2.) protecting overflights during national ATC strikes.
"These 2 splendid reforms would eliminate 90% of all ATC delays and cancellations, and protect EU passengers from these repeated and avoidable ATC disruptions due to yet another French ATC strike."
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