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Flybe has cancelled dozens of flights this morning, blaming a mix of operational issues including a shortage of pilots and staff holidays.
Cardiff Airport boss Deb Barber said they understood Flybe was in the process of consulting with a number of its employees, including crews at bases including Cardiff.
"We remain fully committed to Exeter, Cardiff and Doncaster airports and will continue to offer a comprehensive choice of regional and European destinations operated by our 78-seat Bombardier Q400 aircraft". Most of the affected flights were to United Kingdom destinations.
The statement added: "Flybe would like to stress that the current flight cancellations being experienced are not linked to this decision and are the result of a combination of other factors".
One disgruntled passenger took to Twitter to vent their frustration.
Planes due to leave Southampton, Newcastle, Aberdeen and Edinburgh were impacted, as well as five flights from Belfast City Airport and four from Birmingham.
"All those affected have been emailed and advised they can re-book for travel on an alternative flight or apply for a full refund".
Ms Ourmieres-Widener said: "Our employees generally knew that some changes for the network in a few weeks time were coming, but we wanted them to be aware before releasing the winter schedule then, so that's why we made a decision to send the information".
"Flybe sincerely apologises to all our customers and partners affected by the current flight cancellations". The winter programme will be launched shortly, but in the meantime, we would reassure passengers that the summer schedule is underway and operating as normal.
Passengers are advised to check Flybe's website and contact the airline directly if their flight is affected.