Flights have been cancelled and delayed at London airports due to widespread fog.
Air traffic restrictions are in place at several UK airports due to fog, the country’s main air traffic control (ATC) provider Nats has said.
Gatwick, the UK’s second busiest airport, is among those affected, with around 300 delays hitting festive break getaways.
A London Gatwick spokesperson said: “Temporary air traffic restrictions have been put in place due to fog causing poor visibility. Some flights may be delayed throughout the day.
“London Gatwick apologises for any inconvenience. Passengers should contact their airline for further information.”
Meanwhile, at Heathrow, nearly 500 flights were delayed and 35 were cancelled, according to tracker Flight Aware.
It was not clear how many of these were due to poor weather conditions.
A spokesperson for Nats said: “Due to widespread fog, temporary air traffic restrictions are in place at several airports across the UK today. Restrictions of this sort are only ever applied to maintain safety.
“We continue to monitor the situation and have a Met Office expert embedded within our operation to ensure we have the latest available information.
“Our teams are working closely with the airports and airlines to minimise disruption.”
Passengers at Manchester Airport, the country’s third busiest, were also hit by the disruption.
A Manchester Airport spokesperson said: "Like most airports across the country, we have experienced some delays as a result of fog. In most instances these delays have been short and have not caused disruption to our schedule.
"Passengers due to travel should prepare as normal and aim to arrive at the airport in line with their airline's advice - this is usually two hours ahead of a short-haul flight and three hours ahead of a long-haul flight."
Meanwhile, National Highways, which runs the UK's motorways and busiest A-roads, said the misty weather is not having a significant impact on its network, but reminded motorists to use dipped headlights, wipers and demisters while driving in foggy conditions.
The Met Office said areas of mist and fog would persist in the capital throughout Friday evening, with a touch of frost in places by dawn on Saturday.
Saturday is expected be another dull and cloudy day with patchy drizzle and slowly clearing mist and fog.
