French air-traffic controllers with the SNCTA union are to hold nine full days of strike – starting with a 48-hour stoppage Wednesday and Thursday.
The French Civil Aviation Authority has asked airlines to reduce their number of flights by 40 percent on Wednesday.
The strike will mean some flights in and out of France, particularly short-haul trips, will be cancelled – leaving potentially thousands of tourists stranded.
Even passengers flying over France will be affected by the strike, with French airspace fielding 8,000 flights a day.