BBC News - Katy Austin
Tens of thousands of passengers are set be affected by a French air traffic control strike on Friday.
Ryanair has cancelled 420 flights, most of which were scheduled to fly over France, affecting 80,000 passengers.
EasyJet has cut 76 flights, British Airways has cancelled 22, while Air France said it would only run 45% of its short-haul flights.
Separately, on Monday 15% of Heathrow Airport's schedule will be altered during Queen Elizabeth's state funeral.
To ensure the skies over London fall quiet during the events, there will be flight cancellations, including 100 British Airways flights and four Virgin Atlantic flights.