Passengers are being urged to check with their airlines as the foggy conditions continue to cause havoc for those travelling this morning.
The fog and mist had lifted for a while but this morning it is back and disrupting flights in both Dublin and London.
A number of flights due to go from Dublin to London, and the other way, this morning have already been cancelled.
If you are supposed to be making a trip across to the British capital, it is best to check in with your airline for the latest information.
Dublin Airport, Heathrow Airport and Gatwick Airport have all tweeted out about possible delays and cancellations.
Fog around the London area is impacting some flights @DublinAirport this morning. Please check with your airline for latest flight info.
— Dublin Airport (@DublinAirport) November 3, 2015
Following yesterday’s heavy fog, we advise that you check the status of your flight with your airline before travelling to the airport (1/2) — Heathrow Airport (@HeathrowAirport) November 3, 2015
Passengers may experience disruption. Check your flight status with your airline before travelling to Heathrow https://t.co/zOqJyQR48T (2/2)
— Heathrow Airport (@HeathrowAirport) November 2, 2015
Fog is clearing this morning, however passengers should continue to check with their airline for the status of their flight. — Gatwick Airport LGW (@Gatwick_Airport) November 3, 2015
Met Éireann does say that the fog will lift in most areas leaving a cloudy day with a few sunny spells.
Rain is due later this evening and temperatures will drop to around 5 to 9 degrees Celsius. There is a risk of some mist and fog in parts as well.