Cardiff passengers hit by flight delays after technical fault
7 December 2013 Last updated at 17:32 GMT
Flights have been delayed across the UK and Ireland because of an air traffic control centre fault.
Affected airports include Heathrow, Stansted, Cardiff, Dublin, and Glasgow.
The National Air Traffic Control Service said its Swanwick centre, in Hampshire, was having "difficulty switching from night time to daytime operation".
It said the problem will not be fixed until between 18:00 GMT and 19:00 GMT on Saturday with delays likely to continue beyond.
Passengers in Cardiff were left frustrated.