Fog which caused widespread disruption at some of the country’s busiest airports on Friday is expected to lift during the day – and airlines are currently reporting fewer problems with their schedules.

The UK’s main air traffic control provider, Nats, said the flow of flights late on Friday had been reduced for safety reasons.

Dozens of flights from Heathrow were also delayed or cancelled but a spokeswoman for the airport, contacted by the BBC, did not clarify whether the disruption was due to the weather.

Forecasters say the fog will linger longest in the south of England but at 05:30 GMT, there were only three flights out of Heathrow that had been cancelled and Gatwick had none at all.

Passengers travelling on Saturday should check the status of their flight, Nats added.

On Friday, data from flight tracking website Flightradar24 showed dozens of outbound flights were cancelled from airports across the UK, while hundreds more were delayed.

Manchester, Glasgow and Cardiff were among the airports where flights were delayed or cancelled.

Inbound flights were also affected, Flightradar24 data showed.

Irem, 36, had her flight from Germany to the UK delayed by nearly seven hours due to fog at Manchester Airport.

“We’ve started boarding [at Cologne Airport] but are crammed into a space where we’re waiting for the bus. We’ve been standing for about an hour, it’s just been a bit of a nightmare,” she told the BBC.

“I am from Cologne so we spent few days here over Christmas with my family. We are about to have a delayed Christmas and New Year with my husband’s family in North Wales.

“That will be delayed slightly, but I suppose we’re lucky we’re still going to see them tomorrow.”

National Highways, which runs the UK’s motorways and busiest A-roads, said the misty weather was not having a significant impact on its network.

It reminded motorists to use dipped headlights, wipers and demisters while driving in foggy conditions.

The persistent low cloud, mist and fog has been trapped in place by a slow-moving area of high pressure.

Over the weekend that high will drift away, allowing the breeze to strengthen. This will turn over the stagnant air and begin to lift the fog.

Saturday will start with widespread low cloud, mist and fog – especially in England and Wales. Some of that is expected to gradually clear during the day, particularly by the afternoon, and a few spells of sunshine are possible.

By Sunday conditions look significantly clearer with sunny spells across much of England, Wales and Northern Ireland. At the same time heavy rain will set in across the north and west of Scotland but stronger winds mean that fog will not be a significant concern.