Some flights between France and the UK have been disrupted due to industrial action at French airports.
Easyjet cancelled about 70 flights
Easyjet has cancelled about 70 flights, while British Airways has cut six and is experiencing delays after air traffic controllers went on strike.
Flights to Paris, Bordeaux, Toulouse, Grenoble, Marseille, Nantes, Lyon and Nice are among those affected.
British Airways is transferring passengers to other flights and expected disruption into Friday.
Some flights from Gatwick, Luton, Liverpool, Bristol, Newcastle and Stansted are affected.
Airlines are advising passengers to check with the companies about their flights.
Easyjet said passengers could transfer their seat free of charge on another flight, or ask for a full refund.
Air France said it would operate its entire long-haul flight timetable, and expected slight disruptions and a few cancellations on its medium-haul network.
The industrial action is part of French civil servants' strike over salaries.