More than 20 flights have been cancelled by the airline Flybe this morning, including services to and from Glasgow.
Two flights are known to have been cancelled from Glasgow Airport so far, with the company saying the cancellations are for "operational reasons".
Passengers received texts and emails this morning informing them of the cancellations across the UK.
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The airline said it "sincerely apologise for any inconvenience caused".
A statement added: "All customers affected have been emailed and advised they can re-book for travel on an alternative flight or apply for a full refund."
Cancelled Glasgow flights are:
7:15am Glasgow - Belfast BE122
08:25 Glasgow - East Midlands BE553
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Last month, an agreement was made for Flybe to be sold to Connect Airways - a consortium which includes Virgin airline.
On Monday, passengers with the airline on the 18:40 service from Newquay to Heathrow were left with a six-hour journey time when the aircraft was grounded due to a "technical issue".
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