A number of flights to Malta were affected today as heavy snow caused partial shutdowns at London's Healthrow and Gatwick airports and Manchester airports, among others.
EasyJet cancelled a flight from and to Gatwick while the Air Malta service to the same airport has been delayed. Thomson Fly and Thomas Cook flights from and to Manchester have been delayed.
Blizzards swept across central and southern England earlier today, bringing more road and rail chaos, forcing airlines to suspend flights and hundreds of schools to close.
The Met Office issued severe weather warnings across the entire country, predicting that up to 40 cm of snow could fall in the home counties and London by the end of today.
After the north of England and Scotland were worst-hit by the freeze yesterday, the Met Office warned of "extreme weather" for much of southern England.
Forecasters said Hampshire, Oxfordshire, West Berkshire, Surrey and Buckinghamshire could see "exceptionally heavy snowfall" as the blizzards moved south.
They said between 15cm and 30cm of snow is expected, but there could be in excess of 40cm.
"This is expected to cause widespread disruption to the transport network and could lead to problems with power supplies," it said.
Hundreds of schools have been forced to close with Lancashire, West Yorkshire, the West Midlands, Gloucestershire, Hertfordshire and Surrey worst hit.
The cold snap, which forecasters said is the worst in 30 years, brought travel chaos, with ice and snow making driving treacherous and heavy disruption to rail services.
Close to a 1,000 motorists were trapped in their cars on the A3 over night in Hampshire, with many others forced to abandon their vehicles in the rest of the county as snow drifts made roads impassable.
A spokesman for BAA said a total of 29 flights in and out of Heathrow had been cancelled today.
"Heathrow Airport is open; however there will inevitably be some delays and cancellations due to the severe weather conditions," she said. Passengers are advised to check with their airline before leaving for the airport.
Luton airport was closed from about 2030 GMT yesterday evening until 0430 GMT today, with a total of 44 flights in and out of the airport cancelled.
Flights from Gatwick have also been severely affected after it was forced to close over night, with more than 120 flights cancelled and many more delayed, according to its website.
Luton and Southampton airports are open but are suffering delays and cancellations, according to media reports.
Rail operators have announced reduced services and delays including East Coast, East Midlands, Chiltern Railways, First Great Western, National Express East Anglia, South West Trains, Southeastern and Southern trains.