Is it possible that more people are flying at night because the experience is something that they'd rather sleep through?

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First, "North American-based pilots flying eastbound at night towards Europe are at increased risk of fatigue-related performance" issues.

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In 1992, a bright cigar-shaped object seen flying silently over central London at night triggered a "spate" of sightings, notably in Ilford and Romford.

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It took a few months to get used to not seeing the Union Jack flying or the lights on in the building at night.

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He spent the night at his ranch and was flying off to campaign for several Republican candidates.

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They were scheduled to be flying home at Super Bowl time, for a game the following night.

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Mr Cunningham said that sighted pilots needed to be able to fly "blind" through clouds and at night so his challenge was not too different from normal flying.

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Campaigners against noise at Gatwick have disputed the economic benefits to the south east of night flying.

BBC: Gatwick Airport appeals to maintain night flying quota

They began last Monday night when Belfast City Council voted to change its policy of permanently flying the union flag at Belfast City Hall.

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