Strikes by French air traffic control staff have led to dozens of European flights being cancelled, with some travel to, from and over the country affected.
The six-day industrial action has seen more than 50 flights cancelled already, with easyJet forced to cancel 32 services due to fly today while Ryanair dropped 26.
Experts have urged travellers to check their flight details before reaching the airport to find out if they will be affected.
None of the axed Ryanair or easyJet are flights that connect with the UK, and easyJet, which had feared it would have to axe around 50% of its French-connecting services, was told today by French air traffic control company DAGC that only 20% would have to be cancelled.
British Airways has, however, cancelled three UK flights tomorrow, from Heathrow to the French cities of Lyon, Marseille and Toulouse.