Gatwick’s arrivals and departures boards show delays but no cancellations.

Sunday is expected to be its busiest day during the holiday period, with 769 flights planned.

Heathrow meanwhile said it was operating as normal, with no cancellations due to the fog. Its arrivals and departure boards were earlier showing some delays and cancellations, but it is not known if they were fog-related.

Stansted and Luton airports have also said they are not affected.

BBC Weather said the fog is not as extensive or thick as it has been for the past two days, adding it is mostly in central and south England and south Wales and should disperse from some areas by Sunday afternoon.

But even when the fog dissipates, many planes and pilots may be out of place due to the previous delays and cancellations, which is likely to bring further disruption to air travel.

Flights at Manchester, Glasgow and Cardiff were among the airports where flights had also been disrupted on Friday and Saturday.