Up to a third of them flights were cancelled today at Orly airport in Paris, while problems also occurred at many others airports of France. Aviation “disruption” is expected to continue until at least next Wednesday, due to a strike by air traffic controllers protesting pension reform.

Since the beginning of the protests, the Directorate General of Civil Aviation (DGAC) has been regularly asking airlines to revise their flight schedules from certain airports to avoid even bigger problems. Precautionary flight cancellations will continue through the weekend and at least through Wednesday. On Tuesday, the unions have announced another day of nationwide mobilization.

For tomorrow, the DGAC is asking for the cancellation of 15% of flights from Orly and 20% from Marseille, Bordeaux and Lyon airports. Sunday will be even more difficult for passengers, since 33% of flights from Orly will be cancelled. On Monday, 20% of flights from Orly and Marseille will be affected, while on Tuesday and Wednesday flights from Toulouse and Bordeaux will be added to the cancellations.

According to Air France, from today until Monday, long-haul routes will not be affected, nor will flights to and from Charles de Gaulle airport. However, it is possible that there will be some delays, of which passengers will be informed personally.

Low-cost carrier Transavia, which specializes in short- and medium-haul flights, has canceled almost 60 flights today and tomorrow. He has not yet specified what he intends to do in the coming days.