Travel to and from France faces disruption from tonight until Wednesday morning due to a general strike.
Eurocontrol confirmed that French air traffic controllers would be joining the industrial action.
Thirty per cent of flights from Paris Charles de Gaulle airport are expected to be cancelled, with half of flights from Orly and Beauvais affected.
Air France has said it will maintain most long-haul flights, but that some domestic and European flights could be cancelled.
EasyJet said French flights could be affected from this evening until Wednesday morning.
Rail, public transport and airline workers are expected to strike as well as teachers, energy companies and public service workers in protest against government pension reform plans.