The French general strike is affecting thousands of UK travellers with dozens of flights and trains cancelled.
French workers are taking industrial action in protest at President Emmanuel Macron’s plan to raise the pension age from 62 to 64.
Those involved in the walkouts include rail workers and air traffic controllers.
EasyJet cancelled at least 18 flights between the UK and France, and British Airways at least 13 – affecting passengers flying to and from Bristol, Gatwick, Heathrow and Luton Airports.
Air France axed four flights between Heathrow and Paris.
Affected passengers can re-book another flight or be given a refund under consumer law, but compensation will not be possible as the disruption is outside the airline’s control.
Eurostar cancelled 16 of the 26 trains scheduled between London St Pancras and Paris – warning passengers the French industrial action “could extend beyond” Tuesday.
A further six services due to run between London St Pancras and Brussels were also cancelled.
Eurostar said “multiple sectors” would be disrupted, including national train services and “the availability of some of [their] crew” would be affected.
Ferries were affected between Dover and Calais, as P&O Ferries advised that “all non-essential travel is rescheduled to an alternative date”.
Its own boats were delayed by up to 65 minutes.
Under consumer law, passengers who were supposed to fly are entitled to be re-booked on to alternative flights or be offered a refund, but they will not be eligible for compensation because the cause of the disruption is outside the airlines’ control.
Others demonstrators include bin collectors and utility workers.