There are warnings of further delays at UK airports on Sunday after a computer error caused severe disruption on Saturday.
Thousands of passengers suffered delays throughout the day after the computer glitch disrupted hundreds of flights and forced dozens to be cancelled.
A technical fault at an air traffic control centre in Hampshire meant the national system failed to switch from nighttime mode, leaving it unable to handle the busier daytime schedule.
The National Air Traffic Service said the problem had been resolved by the early evening, but there are warnings of a knock-on effect from the disruption.
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