Strike action has led to the cancellation of dozens of flights to and from the UK and Ireland by German airline Lufthansa.
Around 100 flights have been cancelled at airports in London, Manchester, Birmingham, Newcastle, Glasgow, Aberdeen, Edinburgh and Dublin.
The one-day strike, which is due to a pay dispute, will affect Frankfurt, Munich, Dusseldorf and Hamburg.
As a result, only about 20 of more than 1,650 scheduled short-haul flights will operate, long-haul services will also be hit.
Passengers affected by cancellations can re-book for free, Lufthansa said.
More top news
A woman who underwent a keyhole hysterectomy woke up to find two of her teeth had gone missing.
This summer Birmingham is playing host to 100 giant, colourful owl sculptures which are dotted around the city.
Police are investigating the rape of a woman who was walking home after a night out with friends in Telford.