A strike Thursday by air traffic controllers at Paris’ two main airports was expected to cause widespread delays, France’s civil air authority told Agence France Presse. As many as one in three flights at Charles de Gaulle airport and one in two at Orly could face delays or cancellation, the DGAC warned.

Air France, which was forced to cancel several short- and medium-haul flights from Orly, said it had taken steps to ensure that all passengers reach their destinations.

Long-haul flights and traffic to and from Charles de Gaulle should be unaffected, it added.

Workers belonging to two unions are protesting plans to merge air traffic control operations for the Paris region at one site separate from the airports.
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