Airlines face a third day of flight cancellations and delays due to thick fog.
British Airways warned of disruption at all London-area airports this morning (Tuesday).
“As a result of the poor weather forecast at London Heathrow, the airport authorities and air traffic control have for a third consecutive day requested airlines to reduce their schedules on Tuesday morning to maintain safety,” BA said.
The airline once again called on passenger not to travel to the airport unless carrying a confirmed booking on a flight that is operating.
BA pledged to re-book affected passengers onto alternative flights.
“We are monitoring the situation and recommend you check the status of your flight and allow plenty of time to travel to the airport,” the airline said on its website.
EasyJet said: “We are currently experiencing flight disruptions due to fog.”
The budget carrier advised passengers to check the status of their flights via its website.
The Met Office issued fog warnings for parts of England and Wales through to midday today.
The bad weather in the UK was being compounded by foggy condition across much of western Europe, forcing many flight diversion, delays and a knock-on impact to flights at hubs including Amsterdam, Brussels, Frankfurt, Hamburg and Paris.
Today’s disruption alert came after more than 100 out of 1,300 departures and arrivals were cancelled at Heathrow yesterday and 70 out of 747 at Gatwick.
London City airport was closed all morning yesterday and was forced to run a reduced schedule in the afternoon affecting at least 160 flights.
About 46 flights were cancelled at Manchester airport, 12 at Edinburgh, 16 at Bristol and five at Sothampton. Poor visibility was also reported at Birmingham, Liverpool, Leeds Bradfors,, Glasgow, Belfats, Southen and Cardiff airports.